I am a big sushi fan and have tried many many sushi places in various parts of the valley. Hands down, Sakana is the best. My favorite roll is the Salmon Bomber which I order every time. I like the sashimi there also because it is served on a bed of ice and it just melts in your mouth like butter. My son likes to eat at the sushi bar because they give you an extra little treat (a crab appetizer) and you can see the TV.
I have eaten at all 3 locations - Mesa, Scottsdale, and Ahwatukee - and my favorite is the Mesa location. Even though they are the same restaurant, believe it or not, the rolls differ from location to location. Friday and Saturday nights you can wait up to 20 minutes for a table because the actual restaurant size is so small, but sooo worth the wait if you want exceptional sushi!