I live in Barrow County, not far from Bookhound. I love it out here. It's not quite as quiet as I would like it to be, but it beats the hell out of Gwinnett. Nothing wrong with Gwinnett, just too busy/developed for my tastes.
I am also about 15 minutes from Road Atlanta, which suits me just fine.
Someone said traffic is not bad. That is true for most of Barrow, but downtown Winder has ungodly traffic for such a small town.
If you like hot dogs, you will have to go visit Dave's Dawgs. He makes the best dogs outside of the Varsity. He is a University of Athens Trembling Chihuahua fan, but I don't hold that against him.
AZ and GA do NOT have reciprocity if that is of a concern, unless you are LEO, of course.
Depending on what part of AZ you are from, you might go into shock at how green this place is.