I really want to give this book 4.5 stars but Goodreads doesn't have that option. 
 I loved Divergent. It was truly one of the best books I've read. It isn't that the story is an overly intelligent read. It is actually a very simple read but the thing is that it is a great story. Pure and simple. Everything is from Tris' POV and so you get the sense of experiencing everything Tris does. 
 This continues beautifully in Insurgent. You almost expect for the middle book of a trilogy to be mostly filler and yet Insurgent what a wonderful and intriguing continuation to Divergent with plot twists and turns and some surprises along with a small mystery Tris has to uncover. 
 And despite the fact that I felt I could actually predict the direction and the book was taking and what the outcome would be, I loved every moment. I think a large part of it is the grief and the success, the friendships and the foes. You feel like you are walking with Tris through this story and sometimes you want to knock her on the head and other times you are on her side completely. And believe me there were times I wanted to smack her. 
 To me this series is one you can actually re-read without feeling like you've been emotionally drained. It is fast paced, interesting and most of all selfless. Despite Tris' Dauntless leanings she is Divergent which means she is some of all the Factions while being more of some(at least that is my understanding). You can see her struggle with the aspects of her divergence. And yet in the end it is her ability to see across the Factions that make what she does selfless despite her belief that she is not good at being selfless. 
 A great continuation of the story and I can't wait to get into Allegiant.