Fantastic costume! I was hesitant because I've never done cosplay before or ordered a full costume online, but this came out great. Surprisingly comfortable and well-made for the price! I did a contortion photo shoot in it and got a zillion compliments on the photos. Looking forward to finding excuses to wear it more!
Sizing: I ordered a medium and it was a good fit for me: I'm 5'6", about 130lb, 36AAA (super small boobs). The pants are so flowy and the waist is very elastic I suspect they'd be very "forgiving" on a range of body sizes. The top was a great snug fit on me (snug on the ribs, loose in the arms as it should be), but if you're on the bustier side it might be a tight fit. Standing/walking around it fit great, but for handstands and bridges it did have a tendency to ride up (basically when I lifted my arms), so I had to pin it to the bottom of my sports bra (you can see the black of my sports bra in some of the photos).
The shipping took forever, but it was delivered in about a month as promised (no surprise since it was coming to the US all the way from China).
All in all highly recommend! Super affordable, and great quality. I found some cheap red dance shoes on Amazon for like $10 that were perfect to go with this. I'll be buying the wig next because I was so happy with this I want to complete the "look."