The entrees pretty basic. All of the menu options are essentially a vegetable (broccoli or carrots), rice (white, brown or fried), and some kind of rather bland meat. If you're lucky, you might get some cabbage or mushrooms. The shrimp sauce is good, though I've never encountered it anywhere other than NC/SC, so I doubt its Japanese authenticity.
The sushi is ok. Honestly, I've gotten better sushi at grocery stores up north. I think there are just pretty low standards for good quality Japanese food in the area.
All that being said, the staff are friendly, attentive, and speedy. I know a lot of people favor it for a quick but yummy lunch break.