AH! Someone else who likes it.
I'm a big fan of Grimm. That said, I'm an open-eyed fan. The show has problems-- but far fewer than most if not all other primetime shows. And the fact that the main characters are, for the most part, upstanding Humans (or Wesen) cannot be overlooked.
That said, there's quite a bit of violence and some incredibly disturbing images (if you haven't seen "Tarantella" [S01E11] yet, Steph, it's probably the most disturbing of the murder cases to date). The MCs are a pair of detectives in the Portland PD, so most of the episodes, at least for the first season, revolve around a murder or set of murders. And being cops, we get some language, though nothing too heinously vulgar.
The central conceit, though, begs a number of philosophical questions, among them "What makes us human?" "What is the value of the due process of law?" "When do [certain activities] stop being an extension of the job and edge into vigilantism?" "Are interracial relationships/friendships possible to maintain?" And for the most part, the show does a good job of exploring those questions without becoming didactic about them.
And a fanboy aside: Monroe and Rosalie are, hands down, the cutest couple on TV. With Fitz and Simmons from SHIELD coming in a close second.
