Ginza is more of a neighborhood place. No matter how bad the service or food is, people still come on back because they don't want to drive out to downtown to have some decent sushi.
Ginza's combo boats are pretty good. Their sesame sauce and teriyaki sauces are very good in fact. The boats come with some salad, three different kinds of dishes (ex: sesame chicken, tempura, and yakatori) and dessert. When I went, the waitress was very sweet and the place was busy so we understood why service was a bit slow. Overall, not bad but order the cooked food; it's much better and you will be satisfied.