It comes out officially tomorrow, but I watched it online today. The vibe is very Sling Blade-ish, sans Carl type character.
I'm a very big fan of David Gordon Green. His movies before Pineapple Express are all deep and dark, and this is more of it, and then some.
It has Nick Cage in it, and some kid from Mud, which is still on my to do list on Netflix...
I highly recommend it, it starts off kinda quiet and slowwwww...
But ends with a bang or two.