Like many books, the book started off a little slow, but I find that necessary to explain any background information. Once it started going though, it had me hooked, and I could barely put it down. The characters are well htought out and the character arc/development is done very well. Aveyard also adds twists to the book that I personally didn't expect. This book made me think a lot about what would happen next, and they only get better from here. It's definitely a dystopian novel if that's what you like, and make sure to read the rest of the series if you enjoyed this book.