Passable for late night.
I arrived at my hotel near exit 6 off I-77 just before 10pm on a Tuesday and knew that my dining options would be limited. With a mixed-bag of review and approval from the hotel front desk employee, I decided to give McKoy's a try for take-out. I will say that my food was prepared quickly as I stopped by a gas station to fill up and by the time I returned my wings were ready.
The mac n' cheese I ordered as a side was a big thin and soupy. Unfortunately the 12 wings left something to be desired; they were not bad and I appreciated the smoky flavor, but seemed no better than what I would get at a BW3's. I did appreciate the Calypso sauce (teriyaki and bbq combined).
I can't speak to the bbq and while I did like the smell of the smoker from the parking lot, I did not get the impression of an overly authentic restaurant. I've had worse meals, but in Charlotte I have certainly had better. I would characterize this place as more of a saloon and fully appreciate that late-night can reduce options.