It's a gas station. Just across the line in SC, and our usual happy fuel stop when we're in the area. It's much less expensive than NC gas, and is worth the drive.
Also, Slurpees.
Bathrooms are clean enough, and entering and exiting isn't a TOTAL pain. The one thing to bear in mind is that the lines are usually long because it's so close to the NC line and prices are cheap. There's a car wash, too.