It's too many things: Sci-Fi, Thriller, Romance. And it's not that good at any of them. 
 Also I think it could easily be a short story instead of a novel. The idea sounds cool, but there is nothing more. And it gets really comic in the end when the second plottwist(the only one actually, unless you have never ever read anything fiction or non-fiction about quantom theory and get actually surprised when you find out who the masked man has been.) occurs. Specially the chatroom is just ridiculous. 
 You will enjoy it only if: 
 1- You have never read anything about quantom theory before 
 2- You are dramatic and enjoy romance stuff about love and such