The series recently finished airing its inaugural season.
In any case, I don't see how Koikimo is anything bad for something it brings forward, it is very much fine to dislike the premise and be on your way, but with different applications to morals in a fictional realm from everyone, it becomes very inconsistent to rate something on such a base.
Characters - 7: Ryo is the most interesting character, everyone else is on the generic side of things.