Just finished watching the 1st season DVDs I borrowed from a buddy.
Most folks had described it as black comedy, a genre I appreciate.
Personally, I don't think it is black comedy, as they play it pretty straight. True, some of the situations are tragicomic, but that is different. Also, there does seem to be a sense that actions will have consequences.
The vibe I get from it is more Janis Joplin:
"Freedom's just another word for nothin' left to lose..."
Dude has a family, but his time on this Earth is so short that his imminent death has let slip the bonds of law from his calculations. He is free, for a time.
Oddly enough, I find the DEA agent BIL to be hands-down the most sympathetic character, despite his rough humor.
I find I like it, but would never have my wife watch it, as it is too bleak and corrosive for her tastes.