I am not one to hyperbolize but Hiro Sushi is the best sushi that I have been able to find in the valley. The food here is fresh, meticulously prepared, and delicious. I would typically point out favorite dishes and suggestions but I have loved everything that I have ever tried here. Subject to your tastes, you simply cannot go wrong. The prices are extremely fair, the sushi is prepared by people who actually know what they are doing, and you will enjoy your experience.
Make sure to have reservations when possible. It's tough to just walk in at 6:00 PM and expect to be seated right away.