Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I was surprised to see that the item was used. Advertised as new. Would have liked the new ones stead got used.
Negative

This book is not for everyone. It is extremely scary and disturbing. At the same time, it is a fascinating look at the police work and prosecution that brought the murderous Manson Family to justice. The book is hard to put down; the in depth discussion on presenting a criminal case in court and developing evidence to support the case is outstanding. The main complaint is that the book is a few hundred pages too long. The author seems a little too self-promoting, but then again he did get a prosecution on one of the biggest murders in history.
Positive

This Frankenstein series started off with 3 1/2 stars and deteriorated downward with every new volume. Not up to Mr. Koontz's standard of edge of your seat, nail biting suspense I've come to love.

Negative

