Ugh, Nasty Gal... I love their clothes and think they are high quality, for what you get. All the clothes I have ordered have been nicely made with sturdy material. I mostly only buy the more covering clothes, so I can't speak to the quality of their revealing club clothes.
My big problem is that they keep f**king up the shoes they send me. First, they sent me sandals they KNEW were broken. The box came with a sheet, signed by someone at the warehouse, saying the buckle on the right shoes was broken. WTF I didn't order these shoes knowing they were broken, and I sure as hell didn't get a discount for them being broken.
Second pair I ordered, they sent me the wrong size. No, it wasn't that the shoes were my right size and that the style of shoe didn't fit, they sent me half a size too small. WTF? I really liked the shoes too!
Their returns take so long, and they will only refund you store credit for shipping costs, even if you're returning the item because they f**ked up, like in both my returns situations.