Like everyone is saying, don't go for the sushi unless you really need a fix and don't feel like going off campus.
The best thing here is the combos, which give you some rice noodles (I think), three fried dumplings, a ton of rice, your choice of meat, and a seaweed soup. Oh, also all the small dishes that come with the Korean food there. All that for 7-9 bucks! This is probably not true for other people, but I end up getting 3 meals out of their combos. I like combo 2 a lot.
I guess it's true what people say about the service being slow sometimes, but if you're willing to wait you can get a pretty good deal on tasty Korean food.