I would give it a 4.5 actually... 
 I liked this book a lot, not a 5 but it was good! It totally reminded me of the movie Groundhog Day but for teens. I really liked Sam, a really good main character however I did not like her and her friends so much in the beginning. They were really mean to others but together, they cracked me up! Sam grew on me but her other friends were just so-so. There were parts were I was laughing out loud! The book was really clever and interesting. 
 I think people that liked Thirteen Reasons Why would like this book.