Thank you, thank you, thank you... to all the 'hounds that post about Z Sushi!
After wanting to try it for ages - I finally made it there on Saturday night and was absolutely thrilled by the experience.
The fish was melt-in-your mouth bliss - not one 'off' fish thing the whole night. I loved the creativity of the chef's specials (not your run of the mill offerings or heavy on 'rolls'). If that wasn't enough, the staff was very nice and friendly... and the restaurant itself has this warm ambiance to it (would be a great date spot).
I only wish the sushi bar counter/chairs were different. From where I was sitting (in the middle of the bar), I couldn't see the sushi chef in action (blocked by the counter and frosted glass).
Price-wise - from looking at the menu, it's seemed slightly more expensive than typical strip-mall, sushi joints - but it's not even in the same league, as the quality FAR exceeds anything in the area (Pasadena, specifically).