With Boohoo its kinda hit or miss.
Some clothes are cheap tat which you can't really tell until you get them and others are fantastic and you can't believe you got so cheap.

Recently I've ordered a dress for £30 and to look at you'd expect it to cost at least double that and a denim jacket for £7.50 both of those were of high quality.. but I've also ordered a jacket in the past with button holes too small for the actual buttons and t shirts which are see through but not at all on the models.

Since the sites gotten popular the prices have rocketed but they do have sales on alot of the time.

Delivery has always been great for me, usually 2 days even if i ordered late at night.

I've only ever had one problem with Boohoo.. A refund didn't go through but after contacting them through email they rectified that for me straight away, so i would say their customer service is very good.