I visited here on a Friday with a date, and was very impressed with the atmosphere, service, and quality of food.
We arrived at 7:30 pm (having booked a reservation the day before) and the place was packed, with no spare seating available save for reserved spots. So be sure to reserve if you're coming over the end of the week/weekend!
The restaurant was well lit, though not bright, and so set a great mood for the evening. Though filled to capacity it was easy to speak across the table, and the small candle on our table was a nice touch.
The server was prompt and always around when we needed her but was never overbearing. We were largely left to ourselves save for when food, tea, or the bill were being delivered. Which was exactly as we wanted it. She was helpful whenever we asked her a question.
The quality of food was very good. We ordered the small sashimi boat (25 pieces) and a pair of rolls; one spicy, the other with large amounts of guacamole. Everything we had was very good and was ample for the two of us. Our experience would have been slightly improved if the server had actually told us what the different kinds of fish were included in the boat. While we could identify most of the fish there were two that, while good, weren't immediately identifiable to either of us.
On the whole I enjoyed my visit here and hope/expect to return again. It's a great, quiet, place to come on a Friday or Saturday night and I'd highly recommend you check it out.