Like most of the best restaurants in Tokyo, the place is tiny - 2 rooms side by side, each with a counter that seats maybe 10 people. We had a short wait in line -- only about 20 minutes (unlike the hour or 2 that many people report, but it helps to get there early, e.g., 7 am). The set menu at 3500 Yen is a great deal. Everything was delicious, but we had without a doubt the best uni I've ever tasted. By far. It helps that we were there during the short Hokkaido uni season. You can taste the difference. The toro was also outstanding, but it usually is in Tokyo. Although Tsukiji has become overrun with tourists, still worth rising with the sun and heading there for a great sushi breakfast washed down with an ice cold Sapporo beer.