As a California native who visits Japan annually, I know that good sushi in AZ is hard to find. They probably have the best fresh fish selection in the entire valley. The salmon nigiri is spot on, and offer fantastic fatty tuna (which true sushi connoisseurs know is a rare treat). The fatty tuna sells out, so get there as early as possible so you don't miss out.
The ambiance is okay-ish. The outdoor tables are kind of crammed together, but it's not a huge restaurant and they're really popular. It gets pretty noisy on the weekends, so taking my hard-of-hearing grandma there for dinner wasn't the best idea.
It's a great choice for a post-movie dinner date, but be sure to make reservations since there is always a wait. Great fish though, so it's often worth it!