I ordered take-out from Ginza on a Sunday so I cannot speak to any aspect of eating in the restaurant. I walked in to order from the menu and the front staff told me it would be able 30 minutes. I returned 30 minutes later only to be asked to wait an additional 5-10 minutes. I decided to wait at one of their outdoor tables. After 20 minutes, I returned inside to ask if my food was done. It was not and the front desk staff explained that it was very busy and the kitchen was backed up. When all was said and done--it took about 60 minutes for my order to be ready.
That was a bad start. When I got home, I found the sushi to be fresh and tasty so that did redeem Ginza in my eyes. I enjoyed all three of the rolls I had ordered. I really liked the spicy sauce they use--its a bit spicier than other sushi restaurants which is preferable for me.