Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Four out of five isn't bad

I read all three books in the trilogy over a year ago and have recently come to pick them up again. The best feature of the book is the idea, I love reading sci-fi books that don't actually feel sci-fi - the books that I enjoy explaining the plot to friends and family. The reason I didn't give the book five stars was because there wasn't enough romance, and there is always room for romance - where are we without it? Also I would have loved to have more information about the way of life that far ahead into the future, on a more day to day level. The last reason is because i didn't like Raven, although i know why she was cold and heartless I think hope goes a long way but i never felt she would change - it is definitely a first for me to love a book and not love the main character. Despite this the book left me wanting to find out more so it definitely earned four stars.