If I could give half stars, this place would get 2.5 stars. I did find this place to be a little on the expensive side. The decor was very nice and the service was excellent but the food was just ok for the price.
We beef tataki was nicely done with a decent ponzu sauce and nicely presented. The agedashi tofu was good, although not the best I've had (my favourite is still the one from Wa's). We also ordered the grilled salmon belly and the black cod. The salmon belly was nice and crispy although not all that flavourful. I don't get what all the hype is about for the salmon belly. The grilled black cod was tasty with a slightly sweet glaze on it. The assorted tempura was pretty good - nice and flaky and light. We also had an order of assorted sushi and assorted sashimi. Both were ok.. the fish was fresh and the portions decent... but again, nothing spectacular.
The strangest dish of all was the ton katsu. One of my dining companions wasn't a big fan of raw stuff. So we ordered the ton katsu (breaded pork chop) for her. Traditionally it's normally served as a don (i.e. served in a bed of rice). Zipang chose to do something "fusion" with it. Instead of serving it on rice, it came with a side of COLD mashed potatoes and chilled blanched asparagus and a couple of wedges of tomatoes. The breaded pork chops were fine... tender and not overly dry. However, I just don't get the cold mashed potatoes. It's not like it was mixed with anything to be a potato salad. I haven't come across any culture that enjoys COLD mashed potatoes so far!
Given that the prices are a little higher than usual and the food is not all that impressive, I won't be going out of my way to go there any time soon.