Between 4.5-5 / 5 stars because I can't even with this series. 
 This is my absolute favourite series and I'm scared to read the last book because 
 A) I simply don't want this series to end. AT ALL. 
 B) I do want this series to end because how much more do Connor, Risa, Lev, Bam, Cam, and Hayden (basically a good lot of the cast) have to go through?! 
 C) I'm scared of how this is going to end because there is just so much going on and I wonder how he'll tie up these loose ends (if he even will get to them all). 
 D) There are a lot of last books that been disappointing to me and I just hope to God this isn't going to be added to that.