This dress is so flattering and comfortable!  I'm 5'4", ~110 lb., 34A, typically a 0-2 at most retailers.  I ordered the XS in black, and the fit is literally perfect.  The hem hits above my knees -- not quite as high as on the model, but short enough to be slightly sassy (think "date night") but not so risqu that I can't wear it to work with a necklace and jacket.

The material is that nicely draping, stretchy, swooshy polyester/spandex combo that doesn't wrinkle and is perfect if you're traveling and still want to look like a million bucks.  The gathered top is very flattering on a smaller bust (as well as on a larger bust, it seems, from the other reviews).  Additionally, there's quite a lot of fabric gathered below the knot, so it hides any tummy imperfections and would also be super cute in the first few months of pregnancy, I imagine.  I didn't have the same issue as another reviewer with a gaping hole above the knot; there is indeed a slit in the material right there, but it isn't noticeable on my dress.  If it was, it would be easy to sew up.

This is a great dress to have in your collection -- versatile, flattering, comfortable, great for travel. Easy to wash in a hotel sink, and dries very quickly.