Definitely a solid 4 stars. Korean food in Madison is not as bad as you would expect, but I've never really had anything that excites me. They don't give much banchan - we got some glazed soft potatoes (which were fantastic), kimchi, and some seasoned cabbage.
The stone bowl bibimbap was a very large portion for its price, which was nice. We also tried the beef bulgogi which was good, but not anything unique.
Overall, a good place to check out, but I do think there are better Korean places in Madison, including Sol's on the Square (which is more pricey though).