There are some in the Triangle, but I don't think there's one in Charlotte yet. It started in Arlington, VA. Lee Atwater was one of the original investors (but I like it anyway -- he was a good musician). It's a ribs/barbecue (Memphis-style) place; the music that plays is all blues and R&B.
There is one only a few minutes from my parent's house in MD. Let me tell you that for about the last 10+ years I have refused to eat in that restaurant or the one in Williamsburg (which is the closest to me now). I have never had good food there and I won't go into detail about the time we waited an hour+ for a large table to become available instead of them pushing two tables together when my Great Grandmother and Grandparents were with us.
Some of the best burgers my husband and I have ever had are at Duffy's Sports Grill, a local chain in South Florida (Palm Beach area). I so wish they'd expand northward!