I found the sequel to be just as good as the first book. It begins to build the background stories of the main characters to help the reader understand the motivations for their decisions and actions. This book focuses a lot more on Tris and Tobias' relationship. Tris is sometimes a hard character to like and you ask yourself constantly "why don't you just tell him the truth." But just like most good dramas, there would not be a storyline if the main character didn't keep unnecessary secrets that ended up causing problems. I liked how the characters deal with hurt in different ways, but are shown working through it. Lots of action, more serious tone in this one, and sexual overtones increase.