I just received my costume and tried it on.  It looks pretty cool!  With my knee-high boots on, I look pretty bad ass, and I'm not a bad ass kind of lady, so this should be fun to wear.

I'm a size 4-6 usually and ordered a medium.  It fits me ok.  It could be tighter in some places, but it's just a costume and I'm not really wearing it to try to hooch it up, so I think I got the right size.

Before I ordered this, I couldn't quite tell if the model is wearing thigh-high boots.  The leathery-looking part on her legs aren't boots - it is actually part of the legs of the costume.  I think you could wear mid-calf length or higher boots with this and it would look awesome.  A heeled boot is a must though to really amp up the cool factor.

There are a few issues with this costume.  First, it comes with gloves, but they are not long enough to reach the sleeves, so there is a gap that shows your skin.  It doesn't look horrible, but it doesn't look quite right.  So, I have ordered some black opera-length gloves that hopefully will do the trick.  The costume fabric is also very thin and bit sheer, so you'll need to figure out your underwear situation in advance.  I'm thinking black boy shorts and a black bra might work, or perhaps a black body shaper.  Bikini style or thong underwear did not look right with this costume because you can see the seams of your undies pretty prominently through the thin fabric.  The headpiece (i.e., the ears) feels cheap, but I think it will do for one night.  On the other hand, the mask isn't great.  It lifts off from my face.  It might work, but I am looking for a better one.

This thing is basically a black jumper.  I like that there is a zipper in front.  Wish this thing had a crotch flap!  LOL.  Going to the bathroom in this will be a chore -- must remove gloves, belt, and pull jumper down.  Heaven help me if I wear any shapewear underneath it.

There is a wig that you can get to have hair like Anne Hathaway's in the movie, but my hair is brown and long enough, so voila, the transformation is complete!