This review can be found on my website: http://susreviews.blogspot.com/ 
 The second book in the Divergent series starts right after the first one started. Tris, Tobias (Four), Tobias's father Marcus, Tris's brother Caleb and the awful Peter are on their way to Amity for help and refuge after the Dauntless/Erudite attack on Abnegation. The refugees are not safe, so they travel to Candor where the rest of the faithful Dauntless have gone. Tris is having trouble coping with the death of her parents and with having killed Will and her inability to deal with it is effecting her relationship with Tobias. Her behavior becomes more reckless as they all try to come up with a solution on what to do with Erudite and the traitor Dauntless and how to keep the Divergent safe and how to find new allies in the Factionless. 
 I heard from several people that Insurgent wasn't as good as Divergent. I purposely waited a while before reading Insurgent so that I wouldn't have to wait as long for book 3. Perhaps because of this, I liked it more because I wasn't comparing it to Divergent. I thought it was really good and I thoroughly enjoyed it. My only complaint is that since this picks up right where Divergent left off, I had a hard time remembering all the characters. Also, Roth didn't describe the characters, so I couldn't picture them in my head since they were described in book 1. At the end of 2, she described Will, but it took until the end of the book to find out what he looked like. And Christina? I have no recollection of what she looked like except that she has a different complexion as Tris. So that is my only complaint. Otherwise, it was fast paced and fun. Yes, Tris's and Tobias's trust issues and insecurities were a bit tiresome, but they're teenagers in love. That seemed to be how I remember my relationships at that age. Can't wait for book 3 to come out!