Yamasan's atmosphere is a little ""divey"", but the staff is great. They are NOT located in Mill Creek, however as the last reviewer mentioned, they are located in Bothell proper in the Canyon Park area. The sushi is great and the tempura is very light and delicious. It tends to involve different vegetables from one day to the next: green beans, squash, carrots, plus shrimp, etc. Combo plates are reasonably priced. Be forewarned of the following 3 things: they are closed on Mondays; if you hit the place at the noon hour on any other day of the week, you are likely to have a farily long wait for a table; you will come out of there smelling like fried food as the ventilation is crummy.
Pros: Great sushi, Pleasant staff
Cons: Poor ventilation, Closed Mondays