Perhaps the best measure of an establishment's customer service is how they respond when things don't go as planned -- which is to be expected from even the best run places. After a small mishap with my order (I was given the wrong person's food, which I didn't discover until I had already returned to my hotel room), Rhino Market not only replaced my sandwich but gave me a gift card which I used to purchase an accompanying spinach salad -- all of which was delicious. I will be sure to return the next time I'm in Charlotte!