Actually we went to Hiro's on Saturday at lunch. There were 2 other tables, nobody at the bar. Everybody was friendly and we felt ok with the room having nobody there.
So we had a sushi/sahimi combination and a tempura udon noodles, my friend doesn't eat raw fish.
His udon was perfect, excellent tempura, so dry and so crisp that it shattered when touched with a chopstick. He loved it.
My sushi/sashimi combo reminded me of the sea. Very fresh, I liked it. I would definitely reccomend going to Hiro's.
However, this time I want something between Sebastopol, and Petaluma.
re: Melanie Wong
My long-term favorite sushi in Sonoma County is Yao Kiku in Santa Rosa on Yulupa. Sam Ogura, chef/owner is the real deal, as evidenced by the fact that you must earn his respect. Fortunately this is easy to do. Just order oma-kasei (chef's choice). You won't be sorry.
We've also enjoyed Ume in Windsor. Local review: