I'm really liking this show, one of my favorites of the series that started last fall, maybe right behind Fringe. The show is simply fun, and the background music does a lot to promote this atmosphere. I really like the redhead chick, and I like her chemistry with Patrick... I'm rooting for those two to get together instead of the obvious pairing the show is trying to push forward.
The Red John storyline is a good one, though that "evil laugh" they gave him cheapned him to me a bit. But overall this is quite a cool procedural.