Ideel makes you pay for your returns unless you do store credit, which is a way to rook you into buying more. In the days of internet shopping, paying to return items that don't fit is ABSURD. The company is owned by Groupon, and groupon has it together so why don't they get on the same system.
Clothes often feel cheaper than designer clothes--not sure why.
Overall, I wouldn't recommend it unless you know your size very well.