I've been coming here since I was about 16! I love the style of the floating boats because you don't have to constantly flag someone down and you can start eating immediately. Their udon soup is yummy... they add bits of tempura in it- yum! I've tried the California rolls, tuna and salmon nigiri, eel rolls and seared salmon- all delish. I like the cans of pop opposed to fountain, much tastier. The coloured plates make it easy to keep track of price.
I go at lunch a lot, but tonight I came for dinner and noticed they made people wait until their parties were present... which is awesome when busy, but the bar was empty aside from me and two others so I would've been annoyed to have kept waiting! They're great at serving single diners though, they always squeeze me in so I can get my sushi fix! But if you come at a busy time on a busy night, expect to wait a while... (seems worth it to me for the food).
Ps- you can take from the boats or request any menu item you don't see floating from the menu!