I ordered this dress in an XS and was so disappointed on the fit. I am 5'4" and it was way too long and way too big around, but was super short in the sleeves. The fabric and dress in beautiful but just doesn't fit very well. I let my daughter try it on to possibly give it to her and she is about 5'10" and weighs around 140 and it fit her better but of course was super short in the sleeve length. She obviously never orders an XS.
This dress is beautiful! I ordered a size up because I have a bit of a tummy :( It hides it so well! I think my regular size would have been fine as well. I am 5'7" and the length is nice. I won't be tripping over it. The dress slips nicely over your head and I don't think it will wrinkle much.