For the price, you might as well go to Cowfish which is nearby. The food here is flavorless and of low quality for the price. The portions are small for the price. I'm going to keep harping on the price, because you'll spend as much at Cowfish or Bad Daddy and get so much more. Even simply comparing the side of tots side by side, American Roadside falls flat and is a much smaller portion.
There's really nothing to say about service since you walk up to the counter, order, and they bring your food to your table. There is very limited interaction with staff.
Parking is easy because this place is never busy.
I've been here twice and there are simply too many better options in Charlotte for burgers, shakes, and tots to waste my money here.