This book is wildly popular with middle school girls, including several girls in Pageturners Book Club, who recommended that I read it. I will start off by saying that I can see why this book is in demand. It is fast-moving, has characters that you love to hate, and is full of contemporary references to fashion and popular culture.
However, I also have to say that this is one of the worst books I have read in a long time! The characters are completely shallow--even the "good" girl (Claire) that we are supposed to identify with. I just did not believe that a) Claire would want to be friends with the awful clique of girls after the things they did to her and that b) she could sneak into the mansion and text message from Massie's computer. And the final scene in which Claire and Massie are in a bush listening to their drunk fathers sing 99 Bottles of Beer is about as contrived an ending as I could think of.
The mean things that the clique does to the new girl are truly awful, and I'm sure there is some therapy in reading about kids who are meaner than the people who are mean to you. There is nothing wrong with reading these books--kids love series books and of course everything a person reads doesn't have to be well-written, but I just had to give my true opinion of this one. If you're looking for a better book about the horrors of middle school, try The Girls by Amy Goldman Koss or Define Normal by Julie Ann Peters.