The reviews I read before I started this book were very mixed. I think that for some people, if they read Stephanie Meyer's other books and didn't like them, they were likely destined not to like this.
This book is more like her book The Host, dealing with being on the run, the paranoia that comes with it, and the unlikely relationships forged. There is, of course, a love story but I thought that it only added to the charm of this book.