I'll admit it, I got this just because I wanted the angry girl face. I have to make a few Miraluka as soon as I get the Legacy unlocked by Lord Tank-Bot, after all.
Seriously, though, despite being a pretty generic part of this wave, the Roller Derby Girl is very well done. She has excellent paint, or printing, or whatever. All of her design is very well thought out. She's got great attitude. The skates are cool too, but I don't think they're new.