Veronica Roth is a horrible human being. That being said, Allegiant is a masterpiece. There were parts that were definitely much slower than I would have liked - a lot of the science jargon and explanations seemed a bit much to me, however it definitely helped explain the first two books throughly and what their purpose was. After half a box of kleenex, I will vouch for a moving and shocking ending. Definitely a wonder piece of fiction. I adore this series.