I really, really liked this dress, but the small was just a bit too big to be flattering on me. I would say it is true to size, with Small comfortably fitting up to US6 as size guide suggests. At 5'2" 116 lbs 33.5" bust 26.5" waist, I usually wear a US2-US4, so needed an XS. If the seller reads these reviews, please consider making the dress in XS and more colors. The v-neckline and tulip sleeves make this dress feminine and elegant, and set it apart from other similar dresses I found online.See full review