I'm always satisfied with their "Late Night" ($13.95) menu, but I do get their "Lite Dinner" ($20.95) menu if my hunger can bear to wait until 9:30pm.
In my opinion their food is pretty much up to par with regular non-all-you-can-eat Japanese restaurants.
The pros of the "Late Night" menu would of course be the price. But the advantage of ordering from the the "Lite Dinner" menu would be certain menu items that I like:
unlimited sashimi (as opposed to a limit of 6 pieces per person on the "Late Night" menu),
chopped scallop sushi (you can only get the cone version from the "Late Night" menu ... which I find to be a lot messier),
shark fin sushi (tastes like jelly fish from Chinese restaurants),
tuna tataki (tuna sashimi that's cooked on the outside),
and New York steak (thin pieces of steak that I really enjoy it, but it might be a bit plain for others).
For either menu, I always tick off orders of sashimi, miso soup, oyster motoyaki, agedashi tofu, beef teriyaki, chicken katsu, chicken karrage and jello for dessert. These dishes always come out tasty.
Some items I don't recommend from Ninkazu are their gyozas, unagi fried rice, and salmon kama. The unagi fried rice tasted like bad fried rice with little to no unagi, and the salmon kama is just a deep fried fish head that's very difficult to eat.