Just started watching it (4 episodes into it I think). It's scary alright. I just wish they wouldn't try to scare me as often, and concentrate a bit on the writing part - dialogues especially.
For now, I keep watching it mainly because of the main character (also the main character from Tilt). If that wears out, and if the action decreases (like in most show's mid season), I'll abandon it.
Now something entertaining:
It's a "trailer reviews" page on bbspot.com. I wanted to link a specific trailer review, but most of them are so damn funny, so you might as well read all of them.