I've only had one reason to shop at Fashion Crimes (Prom) and I didn't even end up going, so I didn't end up needing to buy a dress at all.
But that's not to say I didn't want to. This place has gorgeous gowns that go far beyond the gross concoctions that Fairweather and Le Chateau come up with. If you want a dress with character that will make you look hot and awesome, this is your place.
Apparently they have a "Prom Dress Registry" to ensure that you're buying a dress that no one else has, and that no one else will buy your dress, to avoid the HORROR of showing up at prom with the same dress! OMG! Sorry, I shouldn't mock, I know it would be devastating if it happened to me at 16.
Anyway, great dresses, but as formal dresses cost a pretty penny, don't expect bargains. The store is cute too, so it's fun to take a gander in once in a while.