A student gave this to me before Thanksgiving and said I just HAD to read it. She read it in two days. Took me a little longer (research paper grading gets in the way) but was definitely a page turner. I hated the protagonist at the beginning of the book, but by the middle, I liked her. Not a fan of the ending, only because I get used to nice little packaged endings in YA lit, so my dislike is probably more years of conditioning than anything else.
Nice book, but fair warning--lot of drug and alcohol references (teen partying, etc). I do like Oliver's prose, so I will probably pick up her 2nd one, Delirium, soon.