It's no wonder reservations are a must here and that you must hold them with a credit card number. The space is so small that the limited seated must be adjusted to the parties that they expect to host that evening. I can't imagine that this place really ever does off the street business.
The decor here is definitely simple and efficient and the Japanese establishment feeling is highlighted by leaving your shoes at the door and donning slippers for the evening.
The set menu should be your only real choice as it'll take you through a wonderful culinary tour. The service is impeccable and each dish is explained. The range of dishes encompassed fresh vegetables prepared simply and tasty to wonderful pieces of sashimi to expertly cooked fish to a noodle soup with delicate flavor all topped off with a light and refreshing dessert, which on our night there was a grape sorbet that was more like shaved ice. There are some misses though like the deep fried soft shell crab which was dominated in flavor by the rice cracker used to coat it.
The portions aren't large, but unless you regularly eat at buffets, the 8 to 10 courses should make you full enough near the end. That type of full where you can definitely have more, but you don't really need to.
Overall it's a wonderful experience that seems to give the diners a glimpse into the world of Japan.