To start off, the world building in this book was phenomenal! I was hit with a terrifying reality that this type of future is certainly a possibility. Not much background is given about the actual war itself, but the military-style government that is such a key part of this book feels very, very real. 
 My feelings for the main character, Ember, were torn throughout the book, often resulting in me being very frustrated with her. She was a constant pain in the butt, many times deciding that running away from the one person who was investing everything into her safety - Chase - was the smartest idea. No. Stop being stupid and do as you're told for once! 
 Chase, on the other hand, I liked a lot. He was very smart about the world he was immersed in, and his feelings and motivations were just very real and something I could always support. 
 Overall, I enjoyed the book and look forward to the second one. Hopefully Ember has grown up a bit and is past making weak and stupid decisions that occurred much too often.