Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Really Good, but too many characters

This was a really good book. The only bad thing about it was that it had so many characters, it was hard to keep track. I think I would have enjoyed it more if I had read it straight through, but I read a few books at a time. During the climax, I couldn't put it down. By the way, I'm a 13 year old girl.