I travel to Columbus regularly for work and stay in the Westerville area. This little gem is a 3 minute walk from my hotel. I try to eat there at least once when I am in town.
The best part of the trip to the Polaris Grill is the Aztec Chowder. It is a white bean and Monterrey Jack cheese based chowder with diced chili's and chicken. It is a bowl full of awesome! It is must try for your visit.
I usually sit at the bar and have had the pleasure of having Justin wait on me numerous times. He is a dedicated hard working employee. More people should take a lesson from Justin when it comes to work.
Over my visits, I usually have either the hickory smoked pork chops (excellent), the fish and chips with sweet potato fries (hint the mango ketchup is incredible), shrimp & scallop New Orleans (this is also a must try at least once).
If you are in the Westerville / Polaris area of Columbus make sure to give the Polaris Grill a visit.