I go to this restaurant once a month. This is the best korean food I ever had in the downtown Korean town because I had tried every single korean restaurants in the area. Their Soon Tofu and Jae yuk bokum kimchi are my all time favorite! The price is probably the cheapest in the area and the food is great.
I have seen that they dry the utensils with a clean cloth and air dry the water cups on the side. Washroom is always clean and free of unpleasant smells. So don't worry about the cleanliness and sanitation of the restaurant.