Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A very fun book

This book was very fun to read. It has been a while since I read a book that made me care about the characters as mush as this book did.The book is basically a fun retelling of Heinlein's Starship Troopers. As much as that last line sounds like an accusation of plagiarism, let me assure you that is not my intent. Where Heinlein's story was a vehicle for lectures on society, this one is a story about the characters. The book goes in a totally different direction and accomplishes its goal quite well.