I've been to a variety of sushi places across Toronto and none of them have been as consistent as the quality of food at Ginza (especially at to Yonge and Clark location).
I used to go to the All-You-Can-Eat sushi locations nearby (Hockey Sushi and Sushi Fun), but I've gotten sick on numerous occasions and refuse to go to both again.
The service isn't always there but the quality for sure is. I tend to expand what I eat there. I highly recommend the Cod Fish Bento Box and the Golden California Roll.
My fiancee and I have locked that place down as a staple when we don't know where to eat (which is often) because It's great food with a great atmosphere and definitely worth a look at.