tandemdiabetes.com Reviews 

Support is impossible to reach. Wait times are too long and they take forever. I expect fast times.

Out of all the insulin pumps I have used, the T-Slim has been the most frustrating and wasteful pump. It does not have the simple technology to tell you the cartridge is not full enough until you have wasted at least ten units for the fill tubing process. And don’t get me started on customer support. Use the Omnipod.

I am so sick of having to waste insulin for my pump to recognize there’s a new cartridge. Please change this feature!!! I do not always need to spit out 10 units of insulin to the trash every time I change my cartridge. Sometimes my cartridge runs out before 3 days. Sometimes I am running high and use it up way before then. Sometimes I have to replace the infusion but not the tubing because it gets knocked off my body. Who are you to decide what happens to my insulin and the money I paid to stay alive? I had a Medtronic pump before and if they had a pump with a closed system and slim profile I swear I would have never switched to tandem. Unbelievable. I also want to mention that less than a year into owning this pump after 5 years with Medtronic, I had to get a replacement sent out. What in the world are you guys doing? From what I see all you are doing is exploiting diabetic peoples desire to live a normal healthy life by flashing new tech around as if it is actually worth it. Oh and so much for their extended infusion sets. I don’t get a single day longer the regular, more affordable, Medtronic sets. I feel lied and betrayed and if I weren’t stuck in this money pit, I’d get out and have another company manage the future of my existence.

I developed an allergy to the t-steel cannula but no one could figure that so I had to wait 3 days to speak to a nurse to figure that out and another week to get the sample new infusion set to try it out. If they do not know something they just refer you to your endocrinologist who usually does not know. Very frustrating!

I have the pump for 1 year. This is not a good pump. My previous pump AcuCheck was working perfect but supply infusions are not available to US.
Anyway with this new insulin pump my A1C increase significant from 4.8 to 5.9.
The infusion set is not very efficient. Normally I need about 30 units per day but with this pump needs about double the insulin delivery. In addition the insulin delivery acts very slowly. If you High in sugar will take very long to finally be back in normal ranges.
I am not using carbs for insulin calculation.
Using this Tandem pump you will not be able to sleep anymore. I turn all the warnings to vibration, but still very annoying. Always is non stop beeping. From low power, low insulin, infusion side changes, high, lows, sometime pump thinks you may get low or high generating alerts.
The phone app can't reach the cloud. If you set it works, but when travel to different WIFI or network will need to put your E-mail and password again.
For the pump interface I will give 1 Star only. To program a bolus you need to go in 6 steps just to go there to input a number. Pump touch screen is not capacitive sensitive, so you actually need to press on the screen to work. If you miss 3 times the pump screen locks up and need to start again.
Only good thing about the pump is stopping insulin delivery if you are getting low in sugar.
I do not recommend this pump.

Terrible customer service, I have been waiting weeks to send back the X2 pump, they are VERY slow to send the Auth Code. They Just want to sell the unit, after that they ignore you.

I have to say my experience of the tandem tslim has been great
I had been on a different pump for over 8 yrs and was worried about change but
The change over was simple and straight forward the rep was very helpful
Once I was able to access the dexcom6 and the iq control the results were outstanding
My hba1c dropped to 4.9 within weeks!!
Never in 40 plus yrs have I had a result anywhere close to that! Lowest ever was 7.9
I am incredibly happy with all aspects
the customer service has been straight forward and reliable
The rep has been great! Thanks Amy
Everything has been beyond my wildest dreams
Honestly nothing negative to say
Brilliant and amazing!!

Oh wow!!!! I don’t know where to start but pretty much the same thing going on as everybody else on here has written. I do notice that when you call up the so-called customer service, workers act very childish and accuse you of stupid things very very childish like you’re talking to a two-year-old they want to argue with you and they have to be right even though you’re the one with the Diabetes for 25, 30,35 years And my main issue was the infusion sets not working correctly it would leave a deep hole and looked infected even as I changed them out every other day. She kept telling me well go to your doctor and kept saying ma’am to me. I’m 55 years old. I think I know when I should go to the doctor and when I shouldn’t all I wanted was for them to listen to me and replace some of my infusion sets until I could find one that works good, I never had this problem in the past but I’m done I told her to F off three times and that I was going back to Medtronic.

Horrible customer service. You get a completely different answer every time you call. So frustrating. Wish I could go back to Medtronic. I'm even more disappointed that my Dr. convinced me to switch to Tandem. I'm sure there was a nice kickback. I guess the most thing I'm disappointed with is that Tandem doesn't give a crap they are playing with peoples lives when products that keep diabetics alive never arrive. There is always an excuse! Stay clear of Tandem!!!!

When I first bought tandem I was super excited for the control IQ. In the year I’ve had it, it has had two irreparable “malfunctions”. One back and June and the lady on the technical support had absolutely no idea what she was talking about, so they sent me a new pump. This morning I woke up to another one and I said that this has happened multiple times in the past few months and she tried to argue with me that the last one happened “a while ago” (June). It doesn’t seems like a while ago when my life and my well being literally depend on this pump. Thanks Tandem!!!

The pump works great, but a lot of the time when you fill your pump it give an incorrect reading of how much insulin is now in your pump. Also the connectivity is garbage, if you have your pump on your left side and your transmitter is on the right it will lose connection (less than 12" apart!). My last pump wasn't as advanced as this one but it never lost connection unless the pump and transmitter were 5-10 feet apart. If they fix the fill error and boost the connection signal, this would be a really great pump.

Stay away! This “awesome” touch screen almost killed me! For some reason, idk why, I looked a couple minutes before heading back to work, after taking a correction of 2 until, it said 17.9 ACTIVE UNITS!! I have NO IDEA how I somehow “bumper “ this bolus into the pump, but I’m glad I happened to look at it because I had to go to the emergency room so they could give me some sugar in my veins. I know that’s not the technical term but you get my point. This is not the first time that this is happened, there was three other times where it had given me boluses that I didn’t put into the screen. Somehow I managed to bump the touch screen while I was at work where the pump was in my pocket and somehow managed to give me insulin. I am literally going back to taking shots today because I hate this pump at this point I’m gonna end up dead. I am going back to the med Tronic pump that I had 1000 times better than this crap

Coco made my tandem experience great! She was so kind and helpful, she was patient while I was following the instructions she left that were very specific and easy to follow. Coco was definitely the best tandem consultant I’ve had. Thank you Coco!

I have the tandem tslim x2 and I love it, the control iq is extremely helpful and the customer service is great, I'm always able to get the assistance I need with no stress.

The only thing I wish was different is the font/word size on the screen when going through options and settings, it's so small it's difficult to read.

I strong agree with all and every one review about this Tandem Company. The clinical support teams are excellent and awesome. I have to shout out and kudos to the clinical diabetes specialist team. This team is the only group of professional and expert people. I have to say the clinical specialists team is the only team deserved a FIVE STARS. thank you to the clinical support specialists team. However, the pump is the worst pump in the entire world. The customer service is extremely nightmare, awful, nasty, no compassion, and has no knowledge forever. Particularly when it comes to order supply to run the pump, you will have to live with nightmare and waste a ton of your time to deal with the entire children attitude. Yes, it is extremely frustrated, irritated, nightmare and horrible. They don't care you die or lie in the hospital waiting to get yourself bury. All they just want your money. Every single time I reorder supply; there is no single time I don't have to deal with their shipping issue. The worst one was just last week. I placed the order 1 and half week in advance. They did not ship out until the end of second week. I got the email from supply department advised me that my supply has been shipped. They provided me the tracking #. However, three days later, I keep clicking on tracking #; UPS keeps saying "time and date delivery will be providing as soon as possible". I called supply department to report the issue. The customer service rep was extremely rude, incompetence, nasty and very unprofessional. She told me "it is not tandem issue and it is not their responsibility when it left warehouse". She told me to contact UPS. I literally told her I did and UPS told me that they have not picked up the package and they don't have the package. Evidently, between Tandem and UPS tried to point the finger each other and let customers suffering without supply to run the pump getting insulin to keep you survive. The interesting part is Tandem told me that give them two weeks to investigate to see where is the package and until they found the package and get the package return back to them. Then, they will send me a replacement package. They are all Very rude, disrespect and extremely careless for customers ‘well-being. They treat customer like an animal. Then, they turn around submit 2 claims to my insurance even though I still have not received the package. And yet, not talking about all of their employees is a liar. They all keep telling you that they will work on it and call you back momentary. However, none of them do including all of their supervisors and manager. When you talked to supervisor, they tried to talk over you and put words in your mouth. I believe Tandem just hire all of the trash and a warehouse dumpster employees. They all don't behave in the professional manner and they all don't know how to treat customer with dignity and respect.
Please don't choose this company for your insulin pump. You will be regret.
By the way, the pump trainer also is another problem.
They keep canceling your appointment again and again and try to give you all of stupid excuse.
Horrible, nightmare and awful!!!
Please stay far away from this company.
By the way, I am also on the fourth replacement pump. :((((((

Company tells you supplies will be one price then when reorder comes it's 3x as much. They don't tell you have to call and pay over the phone before they will ship. To make matters even worse they bill you for entire order regardless of insurance and then you have to call for a refund, in my case over $800 above what my actual bill was after insurance. They tell you they are processing it but you have to call several weeks in a row to get it done. Extremely frustrating. Unless you have hundreds of dollars to spend and or tie up I wouldn't recommend this company.

Really bad service
You can’t upgrade your pump easily
They write a email to you with a upgrade number but this is not working.
Contact tandem by phone so they sent a email again with different number
Do all steps again but I gen upgrade the pump
Contact again by telephone and now they say you can wait for 2 days more because they need to contact USA for more information.
For tomorrow I need take day of from work for safety if all works correctly after that upgrade so I stay at home for nothing . And that means I need to take off a extra day again.

Bad service bad equipment

Terrible customer service. I was on medtronic pump before. I have been on tandem 4 months. Had hard time adjusting...very little help. But the worst is I ordered supplies and 3 weeks later I have not received them. They charged my cc 1600.00 17 days ago..told me they made an error and they would ship 7 days ago. Today I called. It is in shipping dept but has not shipped. They don't care that I'm back on shots and my bgl is out of control highs and lows or that I have missed work. They don't care that my supplies are 3 weeks over due. I called Tandem and they said oh so sorry..this is terrible...really can't help you. Have a great weekend. Medtronics pump may not have been as high tech but they never let me run out of supplies if I had a problem they cared and helped. As stressful and as much as this has affected my health with going back on shots and only having short acting insulin...well any T1D out there knows it is not good. Definitely regret my decision. Now I am stuck for 3 years 9 months. That is a long time to go backwards with this disease. I strongly urge you...think long and hard before you go to Tandem.

The customer service leaves much to be desired. I had a bad patch of insertions where they unclicked themselves, randomly. First I was thought it was a one off but then I realized it was the entire box when I kept changing them and waking up with high blood sugars. I called Tandem and they acknowledged this can happen but it's rare. They said they'd send me out a new box within 7 business days, much good that would do me. I had to take matters into my own hands and order my own supplies from a supplier the next day, and was afraid to go to sleep. The negligence and the fact they likely won't recall this lot number is criminal to me. People could get seriously hurt. I will add when I was on a Medtronic pump, they'd send me replacements the same day and would regularly recall products. This vastly different.

I think the slim control IQ pump is wonderful but the support is awful!! I had various Medtronic pumps for over 20 years- never had a problem talking to someone almost immediately who could answer questions and tell me what to do. Have had the tandem for a little over a year and have tried to call for assistance only 2 times- wait time is very long and one time i had to figure it out myself ws the rep was unable to help. Don’t understand….