This place is a tough place to review. To be honest I don't quite understand what Yuki is all about.
The clientele for this restaurant is usually younger and so this place can be fairly loud. The service here isn't great. If it isn't too busy the service is usually sufficient, but when the lunch hour starts up the service can be somewhat dismissive or rushed.
The food is reasonably priced. Their sushi is a bit more expensive than many other places in Toronto. That being said, I found the rice and sauces used in their sushi rolls to be a lot tastier.
I think Yuki is in desperate need of a makeover. The menus are falling apart and the restaurant window is covered by an ugly sun-bleached screen. If they put together a lunch menu that better appealed to their age-range and hired another chef, I think they'd be a lot more profitable.