Go for Sunday evening buffet
I have to admit that I have only ever been to Kaetsu on Sunday evenings, for their buffet. It is extremely good value.
There is a reasonable selection of sashimi and sushi (including some premium items) as well as a variety of traditional Japanese dishes. In addition, customers get a hand-roll as starter as well as a main course.
It is difficult not to come away from a meal feeling very satisfied...