Currently switching over from GR.
My GoodReads profile is: http://www.goodreads.com/ErikaWasTaken.
Pro: I know how the series ends.
Con: I know how the series ends.
Pro: I liked the way the series ended.
Con: I hated the flipping back and forth between Tris and Tobias.
I know I am incredibly late to the part and knew the end before I actually sat down to read the book.
However, I was much more bothered by the fact that we switched back and forth between Tobias and Tris, yet there was absolutely zero change in voice. I found myself having to flip back to the beginning of the chapter to figure out whose head I was supposed to be in.