This is one I'm forcing onto my year 10s. The reluctant readers are actually enjoying it, but the reader-girls in the class are hating it (and begging me to let them read the latest Lauren Kate instead). As for me, I quite enjoyed it. There are some random exclamation points that drive me a bit mental, but it is serving as a good warning to some of my more unruly boys.
Let me share a conversation this novel prompted:
Student: so Miss, in these places in real life, they have video cameras and stuff everywhere right?
Me: Yessss
Student: Well, I'm a boy. And I have needs. What if I was in there and needed to masterbate?
Me: Well I guess you'd be caught on camera
Student: but that's so dirty Miss!
Me: I guess you better make sure you don't end up in a detention centre then!!
I think he was disappointed that he didn't manage to get the horrified reaction he was expecting out of me.
So, in short, a decent enough book with some interesting themes, with enough to scare some of the naughty boys straight!