We have driven by this place numerous times, but were a bit confused (and turned off) by the diner motif.  Big mistake.  Took the plunge tonight and man, what a treat!  EXCELLENT sushi and gyoza.  Great selection here, from $6.00 sushi rolls to $100 sashimi plates, with everything in between.  Very friendly service, too.  We arrived a few minutes after 5:00 p.m. (when they open) and by 5:30 it was becoming quite crowded. Not only is the diner location quirky, the stereo tunes (Aerosmith, Led Zeppelin... were unexpected.  And enjoyed)  I have heard others talk about true, fresh, sushi and now that I've eaten here I'm not sure I've ever had true, fresh sushi.  Until now.  Highly recommended.