I am a big, big fan of Sushi Kui. The sushi is the best I've ever had. I have friends that drive up from downtown Toronto because they also feel that it's the best Sushi they've ever had.
Beautiful ambience and very friendly staff that has been incredibly sweet and good to my now 4 year-old daughter ever since she was an infant and joining me on my Sushi excursions. When she was a baby/toddler they used to ASK me to give her ice cream on the house. Very, very sweet service that makes those of us dining with kids feel more welcome and comfortable.