The Selection series is a fast read and it is most of all a romance book. The dystopian part is not really elaborate and the rebels do not act like a serious threat. They're just too nice (view spoiler)[though in the ending they killed three characters. I don't know why so many people had to die in the last few chapters. WHY DID CELESTE, HER FATHER AND THE QUEEN HAD TO DIE? (hide spoiler)] 
 All in all, I enjoyed this series like I would enjoy an entertaining reality show. It's nothing special, it's not educational and it is in no way a demanding read. You can read most of the books in 1-2 days and Kiera Cass writes very simple and cheesy. If you want to start the series expect a lot of unbelievable unrealistic dialogue and actions. And be prepared to be annoyed like 50% of the time with the main protagonists. It's a back and forth with the feelings of Maxon and America. 
 Though, I think America reclaimed a more realistic role in this book (by comparision to the second book) she still is a very annoying character. 
 The ending wrapped up smooth and I have not expected anything else of this series. 
 Easy, entertaining, guilty pleasure read!