Good: The new logo design for the P is pretty good, much better than the original. Gone are those ugly gold bracers and boots ^_^
Bad: Though they probably did it because of the logo, the extra cloth covering only one side of her chest looks weird.
Overall it still looks like a work in progress imo. But as I recently read in an article (yeah I'm late), she's not Power Girl yet.
"And as of Worlds' Finest #1, Kara hasn't taken on a costumed identity. She hasn't become Power Girl yet in the New 52, at all." - Paul Levitz
Well if they're going to go that rout, I guess there's nothing to worry about.....for now at least. Hopefully I'll like the character (and costume) we get once Kara figures things out.