Similar concept, different food, here in Columbus. Place is called Hot Chicken Takeover. Moved from a food truck, to a popup building open only on weekends, to a space in the Farmer's Market downtown. They make only a certain amount of chicken (at different degrees of spice), with the sides only being mac / cheese, cole slaw, and waffles. Tea, water is free.
Initially, the place was only open Wed - Fri. Now they are open Wed - Sun. They are very community oriented and have picked up a bunch of recognition.
http://hotchickentakeover.com/