Wild Tuna was unexpectedly really good. We had the hamachi neck, seaweed salad and Marilyn Monroll, and they were fresh and flavorful. The service was prompt, and the owners (I believe) were very accommodating and friendly.
Don't be fooled by its small size and strip mall location. The food is very good. I moved here from the SF Bay Area, and it's hard to find good, fresh sushi within Phoenix. I'll definitely be back, especially since it's quite close to my home.