I checked out and shelved it permanently after Book Three (40% of the way through). The cost (time) of reading it began to outweigh the benefits. 
 I didn't care about any of the characters except Harper. It was like reading a novelization of a TV series rather than an original work. I wanted to care about the characters at the camp but I get a good feeling for any of them. Whether they steal from each other, join up for a singalong, or are voted off the island didn't impact me. As a reader I felt like Harper felt about Jakob: I'm watching an intelligent person deliver a colorful performance. But making a meaningful connection is a challenge. 
 Talented author, but it was too long and had too many characters whom I did not understand.