If you want good wings near Pittsburgh there is at least one obvious choice --Quaker Steak & Lube. Now I won't say these are the best wings in the USA, but the variety of wing sauces & accompaniments is great. And they do know how to cook those suckers.
They have a solid & varied gluten-free menu, and the servers & bartenders are very friendly. So an out-of-towner like myself can instantly feel welcome. I chose the boneless "wings" with Louisiana Lickin' Sauce. Not very spicy but the sauce wasn't overpowering either. The chicken was perfectly cooked, as were the fries.
Although QS&L doesn't have any gluten-free beers (boo-hiss) they do have at least three hard ciders to satisfy the thirsty patron with a gluten intolerance. I chose the Woodchuck Amber, and it was icy cold -- just as it should be. If you crave wings as your guilty pleasure and don't want to spend a lot of money, this is a great place to perch. It's about as casual as you can get and still keep your shoes on, so don't worry about puttin' on the Ritz.
Food is probably 3.5 stars but service is 5, especially for a casual restaurant.