I wanted to love it so much, but I really didn't. Too much going on, when the focus of the story should've been the fascinating world of Lumen. Also, the narration style, third-person limited, is really jarring as it actually makes the book feel more juvenile that it should be given some of the themes it explores.
It just started to get interesting at the end and stopped as well. I'll probably read the next for curiosity's sake.