The second episode of Grimm exposes some glaring holes in the show. The most obvious is the CGI. There are a few scant glimpses of bear faces (which could have been anything), some hazy, brown blobs going through the forest, and a half-second of a whole bear. If the show doesn't have enough budget for solid CGI already, it's troubling to think whether the show can ever be more without showing the monsters in full for an extended period of time.
Then there are the structural problems. Nick's girlfriend is living plot device, intended to show the things Nick may have to give up. Hopefully the writers do something interesting if her character--either give her something to do or get rid of her entirely. The trailer is also a big plot device. It conveniently provides all the answers if Nick just looks--and quite quickly, I may add. It's parked right outside his house, but his evil boss still has no clue about it.