I really, really wanted this dress to work. The fabric, design, and color are beautiful, and the length perfect, but similar to other reviewers have said, there is something odd about how the bodice is cut. Based on measurements, I ordered a 16. The waist fit fine, but the width of the neckline was so wide the straps practically fell off my shoulders.  I am 52, 185 lbs, and a 38D. If you have time, and don't mind spending some money on alterations, I would suggest buying your estimated size and consulting with a seamstress as to the correct size for the best alterations result.