The Golden Rule of eating ethnic food; go where the ex-pats go. I knew I was in good hands while waiting in line to get in for lunch (even at 2PM). The was a very sweet older Japanese ex-pat couple in line behind me. We got to chatting and they told me that food at Kazu is as good as it is back home. SOLD.
I only get an hour for lunch, so I almost ducked out of line at 2.30 to grab something else. the above-mentioned couple stopped me from taking off... Glad they did. At 2.37 I was sitting at the bar and had a massive bowl of Tuna/Salmon salad in front of me. Divine. Yes, it's pricey for a lunch meal, but the quality and quantity of the ingredients is so worth it, so don't feel bad plunking that cash down every once in awhile.
The staff is wonderful, speedy (really speedy) and the place exudes Japanese hospitality and charm.
The next time I go back, it will be for a dinner, so I can really savour my meal and linger over it with a few friends.
(EDIT: After a trip to Japan-- this really is where it's at. It's bang on to what I've eaten there).