The final book in the Divergent Trilogy left a lot to be desired... That being said, the book wasn't necessarily bad and I feel that most fans of the series will ultimately be at least satisfied with the trilogy's ending. (In other words, it could have been a lot worse.) There's not much I can say about the story without giving too much away; the action and intrigue that comprised the first two books is still present in Allegiant. Also present is the ensuing romance between Tris and Tobias. Despite having the core elements that made up the first two books, there were a few things that I took issue with in Allegiant...For one, this book is told from the perspectives of both Tris AND Tobias. I was initially very excited about this aspect of the book. However, I just feel that this idea was better in theory. The dual perspective was not executed very well. There was no real distinction between the voices of Tris and Tobias. If you were to open to a random page and read it you would not be able to distinguish who was speaking (except for use of pronouns, names, etc.). I feel that Roth should have spent more time developing a clear voice for Tobias instead of using the same writing style she's used for Tris's voice.I was also a little disappointed about what was &#34;beyond the fence.&#34; Don't get me wrong, it was interesting and thought-provoking, but... I just expected more! I feel like the explanation for the secrets behind Tris's world were just very bland (for lack of a better word). The previous two books were just so mind-blowing that I expected the same sort of pizzaz from Allegiant, but it just wasn't there.Despite these errors, Allegiant really is a decent ending to the trilogy. Even though it doesn't necessarily end the way you want it to. However, its flaws keep it from entering the realm of 5-star books like its predecessors, Divergent and Insurgent. 

Question: How is the effect?
Answer: fans of the series will ultimately be at least satisfied