Yes finished with this and great ending. 
 (view spoiler)[ the back and forth is done yes. Finally she chose Prince Maxon and I didn't see that coming with Aspen and Lucy. Where did that even come from? America's father being a rebel what? I didn't see that coming either, well sort of I watched Polandbananasbooks book talk on both "The Selection" and "The Elite". I really like this series. Most series portray females as kind of tom boy ish and I really liked that this series had some of the girlie elements like the selected always wore dresses and had their hair done, make up done it was kind of refreshing. When America's father died that was so sad, I really liked him and that ending with Celeste dying, the King dying and the Queen. I was devastated when the Queen died I was like what NOOOOO!! And then the whole Celeste thing, just when we finally understood where she was coming from she is killed off. So sad. (hide spoiler)] 
 Overall, I really enjoyed this series I wish there was more than one perspective in it but I do understand that there are two novellas from Maxon's and Aspen's POV. Just fun thought If Kiera Cass was going to redo this series from Maxon's perspective I wouldn't hesitate to read it. As for now I have the novellas and "The Heir" to read and then I am all caught up on the series.