I consider Sushi Rock as my go to place for sushi on campus. Its got nice decor and attentive wait staff. The rolls are expensive, but ordering 3 and splitting it two ways usually fills me. It isn't really a japanese restaurant though, as can be seen by the massive amount of korean items on the menu. That said, I'd recommend this place over Sushi Ichiban, which I consider to be a blight on the local food scene.