Tris is like a normal girl-to an extent. She is trying to figure out who she is and where she belongs. In the time she lives, she has to decide which faction to live in and how to handle being different. I feel like she is a strong character and (added bonus) there is no love triangle. Four was a bit odd. He had his swoon-worthy moments, but for the most part he was kind of stand-offish. I didn't entirely see their connection, but it still works. 
 The story was interesting and while (the first time) I could somewhat predict what was going to happen. There was still certain elements of surprise that did take me off guard which was pleasant. Sometimes books can be so predictable they're boring. I wish there was more swoon factor with Four and Tris. As well, I wish there was more background information about the factions and their city. There's a little bit at the beginning, but I didn't feel like there was enough. I don't remember if there is more to the past in Insurgent, but I'm hoping there is some at least in Allegiant. 
 Overall, I liked it and I can't wait to read more in this world. I also can't wait for the movie. Having the book fresh in my mind and having the official trailer out-I'm really excited now! I couldn't really see Shailene Woodley as Tris and it is still a bit of a stretch, however I think it may actually work out. I think Theo James can totally pull of Four's standoff-ish personality. Can't wait!