Teharu Sushi is a neat change of pace from your standard sit down restaurant or standard sushi bar. This place can get crowded so be prepared to wait a little bit depending on when you show up - simply add your name to the wait list if their isn't a hostess right at the door.
Teharu operates a conveyor belt where small plates full of sushi, sushi rolls, and other miscellaneous items (pudding cup anyone?) pass in front of you for your choosing. With a conveyor belt you might be expecting top notch sushi but I would simply describe the fare as "decent". The prices are quite good though as you can get your fill of Sushi for $10-20.
The selection of rolls and sushi is alright - you will see a lot of the standards, nothing too exciting though. Some of the rolls seem a little strange to me such as the ones with potato shavings, onion shavings, and the phillie roll with cream cheese and red meat...for American palates I guess.
Ultimately, you can probably find better sushi in the valley but you will also probably spend more money and won't get the fun conveyor belt experience.
Check it out at least once for yourself.