I've eaten A LOT of sushi. However, Hana continues to be my favorite place to go! My boyfriend and I have tried nearly every sushi dish they have to offer and we have always been impressed. We go almost once a month and every time we go, we experience the same things: great food, great service, and a great atmosphere. The staff is incredibly knowledgeable about everything on their menu and always more than willing to take the time to explain their new items. Also, it's BYOB - which is great! You can bring whatever alcoholic beverage you like and they will provide you with chilled glasses and even keep your drinks in the fridge if you'd like (they will also provide you with a little container to chill your wine in)!
It can be a little pricier than some other sushi places, but you have to keep two things in mind: 1) it's in Arizona, it's a desert; and 2) good quality fish (like theirs) probably is not cheap. If anyone ever asks me for a sushi recommendation, I tell them to go to Hana! Dare I say, best Sushi in Arizona!