I've only tried to purchase three things from this site. At first I was thrilled because the deal on the dress I first purchased was amazing, but when the dress arrived a few days before the wedding I was going to wear it to, it was the wrong dress!
They gave me a refund and a $10 credit, which expired before I could use it. Despite this incident I tried a second time, this time ordering two shirts for my boyfriend for Christmas. I loved the design and the price on them! But I used the wrong credit card and immediately sent them an email to see if they could cancel it and reorder it with my current debit card. Their policy says they will respond within 24 hours, but it took them two days to tell my the brand was processing fast so they could cancel it or change the billing information. A week or two later ONE of the shirts arrives. I call about the second one and they tell me it should arrive a week or so later, but for the inconvenience they gave me a $10 credit. Two days later I receive an email saying that the shirt is actually out of stock and they have to refund me and they give me a $10 credit-- which is weird since two weeks earlier they refused to cancel the order because it had already been processed! If you want more reliability, try ruelala or myhabit, they have deals that are just as great! :)