I love PDQ in Concord, it's always well run, clean, great service, consistent. Which is all such a change from normal fast food places. The chicken tenders are as good as you can get anywhere, and I love the handmade sauces. Buffalo blue is my fav! And you gotta have the shakes. They even use the big shake straws, so you don't have to strain a muscle in your neck trying to drink it. I eat here every other week or so. Great place.