I finally watched the first episode after DVRing it on Tuesday. I enjoyed the hell out of it. Olyphant was great as the bad-ass hero, Walt Coggins is always a great psycho, it was surprising, well-acted and seems to have a lot of potential. I'm not sure how much of a problem the small-town thing will be. While he's based out of his hometown, his jurisdiction is half a state, which would seem to give him plenty of opportunities to make short trips, and things can be drawn out if they built up longer term storylines that aren't solved in a single ep.
"Never piss off a hawk with a blowgun" - Conan O'Brien
It was good as a sort of mini-movie, but I'm not sure how it'll work as a series. It feels like they want to build around Raylon vs Boyd, but they sort of ended that in the first episode. But the preview for the rest of the season looked pretty good, so maybe I'll be wrong.
Best guess: Boyd worked for a Blackwater-style private security firm overseas and ended up having to help cover up a massacre of innocent civilians similar to what happened with that company in Iraq, and it's weighing on him quite a bit. Nope.