We also went to Zuziko with a groupon deal, and liked it very much. We are not sushi experts but I am surprised by the negative reviews on the site. The place is intimate and cozy, the owner was very friendly towards us, the sushi selection was excellent, housewine was of good quality, and the tiramisu we order at the end was one of the best I remember (not too hard, not too juicy, just right). All customers in our presence looked happy and content. We are certainly thinking of going back there.