I love Mazz!
I have become a regular over the last 3 years and the chef is always very kind. Even received wonderful carved wood chopsticks at Christmas from him 2 years ago, and a clock this past Christmas!
The fish is always very fresh, and always fast. On the very rare occasion we have had to send something back (more because of being incorrect, the server's English can be a bit rough sometimes....never because of food quality), they're always quick to fix.
It really pays to become a regular and have the chef recognize you at sushi places.
But check it out. It's cheap and fresh, worth a try.