These teen dystopian books can start to feel a little formulaic once you've read a few, but I still found this story/concept to be gripping and exciting which says a lot when taking into account the huge competition. The book focuses on a great group of characters which helps keep the story interesting, and the undercurrent of suspense and knowing that something has to give makes you keep reading.
The idea of factions was something I loved. They're sort of extreme Hogwarts Houses (based on personal characteristics and strengths) but with added choice, and a much more difficult initiation!
I thought the descriptions of Tris' world really brought it to life and there's some intense action, and enough romantic subplot to keep you really invested in the characters (no teen novel is complete without one!) A must read if you loved THG.
What to read next: Insurgent by Veronica Roth, the sequel to Divergent.
Books like this: The Hunger Games by Suzanne Collins.