I wish the colors thing had been explored further--or left out. The way it was just served to add further confusion. Being told that Scott is drawn to Jonah because he doesn't have colors, and then finding out that Jonah's whole family doesn't have them, I wish that were explained better. And why it made Scott so upset that he avoided Jonah for days and repainted his whole apartment.
Plus, I'm not sure if it was the POV switching so often or if it was that I didn't feel like I really got to know either of the MC's very well, but I had a really hard time remembering which one was who and what job he and and whose friends or family belong to whom.
Bonus star for being free.