Let's start with the end. I have so many, many feelings about it. Part of me think it's actually perfect. It's the sort of thing you need to read carefully (I cannot emphasize this enough), but there's a sort of movie-esque quality to the whole thing that I loved. That being said, part of me hated it. I wanted more---as in some sort of explanation as to why certain people did what they did without telling another key person, this other key person's reaction, what happened next, and that sort of thing. It also glossed over someone's death, which was sad because they didn't get the send-off they deserved. Basically I wanted more, more, more.
I was also a little disappointed I didn't get to see the final show-down with a few key characters. I get that it's from Adelice's POV and we couldn't really change that, but there were some people I really wanted to see taken down. In fact, more than any other book, I felt restricted by sticking to the one POV. It's not that Adelice isn't in the center of the conflict, because she is, but there's a lot more stuff going on that she doesn't know about or get to see that would have added to the story. Still, excellent book with tons of excitement.
This book was a little heavy on Cormac (granted he's our big bad, but I would have been happy with a little less his evil and a little more what the rebellion is doing to counteract the horrible thing's he's doing). It was also a little light on Erik, Jost, and Dante. Minor spoiler here, but we don't even get to see them until the second half of the book. The first half was still interesting, don't get me wrong, but I was missing some of my favorite characters and I kept waiting for them to show up. Now, to counter all this, we do get to see a bunch of people from the first book again, which really brings the story around full circle.
I really don't know what else to say without giving away spoilers. The characters were great, and everything you've come to expect and love in the series is here. All in all, this is an excellent conclusion to a wonderful trilogy. It's such a unique world, with such an interesting concept, you really should check it out. It's definitely got its sad moments (which all good books like this should have, especially ending a series) but there's hope, which is absolutely essential. I'm giving it a strong 4 stars. If you're looking for a unique dystopia read, you really should check this out.