This series has it's ups and downs. Sometimes it is super fast paced, and others it feels like the plot drags on needlessly with pointless drama. While Divergent is action packed and incredible, Insurgent slowed down by a considerable comparison. Divergent earned a 5 star review from me, but Insurgent only got a 3(.5) star because of the change of pace. Rather than keeping up with the action from Divergent, Insurgent slowed down and had a few fast paced scenes, but more than anything it only seemed like 500 pages of set-up for the next book. 
 Now, onto Allegiant. 
 The pace picks back up in Allegiant, however it does hit a few bumpy roads where the pace slows down. I felt like there was at least 100 pages in a row where nothing was really happening, but when the action picked back up, it definitely made up for it. One of the tidbits that annoyed me throughout the series was how often Tris/Four fight/makeup. I know that the characters make each other better, but I also feel like that they are a broken record. 
 (The following is not actual quotes from the book, just my impressions of both Tris/Four talking: "I can't believe you did (insert action here). Don't you know how much you mean to me? If you keep doing (insert action here) I don't know how we can make it through this. We might need some space." ONE CHAPTER LATER "Ugh I am so angry right now hey look it's (insert Tris/Four) I'm going to make out with (him/her). I felt like the book was more about their relationship drama than solving the plot problems. 
 HOWEVER, just because I have this one negative opinion of the book does not make it a bad book. There was just a few things that added up in a pile that was just large enough to annoy me. But, Allegiant was still really good. I especially liked the dual perspectives and knowing more of what was going on Four's head. And the ending! Wow. I expected Insurgent's ending, so no surprise there but Allegiant? Wow. I obviously don't want to spoil anything but WOW. 
 Overall, Allegiant earned a 4 star from me because the series in total and the setting and plot being spot on through a decent portion of the story. Allegiant definitely gave me a lot to think about and may have left me a little scarred and battered, just like a dystopian/borderline war book would expect you to.