So, the opening was a little cover my eyes, feel second-hand embarassment for America, but I thought it picked up. 
 I liked the reveal(s) relating to the Northern rebels. 
 Besides being pleased at who America ended up with, I think my favorite part was how Celeste ended up being a character I liked. I appreciated that Cass took the time to flesh out the other girls in the elite, but especially Celeste.