I've been to my local shop 3 times in the past 5-ish years since they opened. Each visit was generally the same and my reaction each time was "Eh, I guess. Could've had a pizza, or chinese, or taco bell."
Quality: 3*. Average amount of meat on each wing. Good split of flats and drums. Little to no breading.
Sauce: 2*. Good variety between teriyaki, mango, chipotle, and diablo styles. Too much corn syrup though makes everything sweet and sticky.
Convenience 1*. My wait time was over 20 minutes on each visit, and inventory was running low. Out of boneless? Really? Even some sauces ran out.
Someone mentioned fries. I had some kind of garlic, cheesey fries and they seemed pretty good. Tasty pub food you would want with a beer. And that is the key point. This is pub food without the pub. If you want some wings & fries you go to the local pub, have a couple beers and get your greasy fried food.
Wingstop is simply separating the kitchen from the pub.