I stayed up way too late to finish Insurgent, but there is no way that I could put it down. Insurgent is filled with tons of action, and there didn't seem to be a good stopping point. And really, who needs sleep anyway? 
 Insurgent is filled with so much conflict it had my stomach in knots. Tris and Four. Factions against each other. Within the factions. Family members against each other. It was so intense! 
 Tris and Four had so many sweet moments and so many other moments that made me want to pull out my hair. 
 Tris did a lot of growing and changing in Insurgent. Much more than she did in Divergent. She has so many different feelings and at times she struggles to figure them out. I liked the girl that Tris became by the end of the book. 
 Four was absolutely perfect as to be expected. I fell a little more in love with him, even when him and Tris were disagreeing. He changed some too, but not nearly as much as Tris. After finishing Insurgent I want a book from Four's point of view even more now. There were so many times in Insurgent that I wish I was in his head instead of Tris' head. 
 I loved learning more about the other factions (Amity, Candor and Erudite). It was so interesting to get a glimpse inside of them. 
 There were a lot of breadcrumbs leading to the end. I picked up on quite a few, but there were some I definitely missed. I really enjoyed the mystery of trying to figure out what was true and what was not.