I thought it was ok. I watch a lot of crime dramas, and I was thoroughly underwhelmed by this. For something that's been getting a lot of press and has Kevin Bacon, I just expected a lot more.
Same here. It's certainly well made and looks great... but I'm just freakin bored to death of serial killers by now, and watching damaged cops/detectives/agents chase them down with their super sexy partners and quirky, comic relief tech guys.
It's nothing I haven't seen in a thousand other cop shows and movies.