I wore this dress to a black tie wedding - it is a beautiful gown. It fit - but was slightly snug - the next size up might have been a bit better. I would suggest you order your true size and then one size larger as a backup. I'm not a busty person and had a bit of space in the chest area; however, I simply inserted bra pads (they were inexpensive to purchase) and it worked perfectly. I'm 5'7" and the long was fine. It was fun to wear such a beautiful dress!! Loved the experience!