Well, it's a young adult book so it was very simply written, but the plot actually did catch me. I liked the concept behind it and I always find futuristic/alternative worlds very interesting. Essentially, in a perfect utopian society, Cassia's world is disturbed in a way she didn't think the Society would allow. Every teenager is "matched" and no one chooses who they love. So when someone else enters the picture through the Society's error, Cassia must choose to maintain her perfect society status or choose real love. 
 Intersting to see where the author took the story, and since it's part of a series, you don't quite know how the story ends. Interested in picking up the 2nd book.