Yes, I order from them often because they're the only retailer that carry my favorite bra brand with reasonable shipping.. I've never had problems with returns, evn if it ends up later then the 15 day window. I love that you send to a us center first because it means shipping is reasonable. (yoox also does this.) I think they're very understanding about customs hold ups and things.
It can take a bit longer to get orders delivered because they are coming from the uk. So I wouldn't use them if I have a looming deadline, but I like them a lot otherwise.