I have only been here for lunch, so I can't say how they are for dinner, but I have been very happy with the prices and quality of food here.
I was first impressed when I got a Chicken Udon there, and I couldn't believe how tender and tasty it was. Then, I got the daily lunch special that has sashimi, chicken, a small salad and comes with either miso, or for a dollar more a great bowl of Udon with a giant shrimp.
Whatever they are doing there is definitely a step above the masses. I am guessing its just using quality ingredients, and that's always a good thing.
I would maybe have given them another star based on food alone, but whereas the service is mostly good and they are very nice, they can be a bit slow at times, and not attentive to refills of beverages, etc.
Either way, I highly suggest this place if you want good japanese food at a reasonable price.