I'll second Kent. Made locally (almost as locally for me as for Kent, though I'm in MN) and good to the last drop. I can't drink it with a cigar, because I find that it overpowers the flavor in my mouth, but it's very good root beer (that just happens to be alcoholic). I've gone through a couple of six packs myself, and find it marvelous.
I was told last night by a friend in the beer bottling industry that they'd just been bought out by a macrobrewery - which, while somewhat concerning, means that you can now find their brews all over the place. :P