Alright I just saw it.
First off, I was wrong to compare it to Pan's Labyrinth, because I realize they are different concepts. Second, the soundtrack was horrible; probably the worst covers ever. I really would have enjoyed a purely instrumental soundtrack.
That being said, I enjoyed this movie. I ended up feeling sympathy for the characters, and sitting on the edge of my seat to make sure they accomplished what they wanted. Talking with my boyfriend who saw it with me, he called it sexist, but I disagree. Just because a movie shows girls in skimpy outfits fighting doesn't make it sexist. If you used that mentality you could say 300 was sexist too. In 300's case, most guys dream of looking smoking hot and fighting like a champion, and so do us girls. I would love to wear those outfits and slash my katana all over yo face. I'm not saying that's how girls should look, but we sure do dream of it. Also, DREAM it is, it's a fantasy world, not the real world. Also, being a girl I think I felt more for the characters. Any girl who knows what it's like to have the horrible fear of a man who dominates you (and not in the sexy way) knows how these girls feel, and why they're trying to do what they're trying to do. Much of the story was relate-able to me in a very enjoyable way.
It's fluff; but good fluff. Don't take it too seriously, and don't compare it to Pan's Labyrinth or Jacob's Ladder. Just watch it, enjoy the fanservice, and shut up.
Oh and yeah, Vanessa Hudgins sucks at acting. she's still hot though.