I had been using Parcel2Go for just overseas parcels for a couple of years now, but a few months ago realised I could save my business up to a grand a year by swapping over all the domestic shipments too.
The staff are always very friendly and efficient, sorting out my cock-ups and queries. The Live-Chat and Facebook page are very useful tools too.
I wouldn't use anyone else and suggest the same to you.
Connect with Facebook to get one click access to Trustpilot. It's easier.Sign up with Facebook