My full review is here on my personal website. I'll post a few excerpts here, though:

0.5 out of 5.0 stars

The very worst thing about this book is the writing, the characters, the headache it gave me, the stupidity it encourages, the fact that Lauren Kate seems to think that high school students/teenagers can be placed into neat little boxes and labeled accordingly only to be repackaged just as neatly when they enter the next grade, the… Well, I could go on and on. This book single-handedly killed off at least 10% of my brain cells.

The very best thing about this book is the cover. *sigh* This is a recurring theme with her books.