The neckline of this dress is problematic - it wants to fold out away from the chest.  I'd read that in other reviews but decided to take my chances (after all it's a dress for less than $30).  Additionally, the shoulders were a little "tall"; ideally, they'd need to be taken in a bit.  I'm 5'6", 160 lbs and I wear a 32GG/F bra, and I'd ordered the large but needed to get the medium instead.  And I still had the shoulder issue with the smaller size.

Anyway, it worked.  I just tugged it way down.  I would not recommend this dress, however.