I've been coming to this place for like 10 years, since they opened. I even had a little "free meal" card which I don't think they give anymore.
Anyway - over all I keep going to this place because they have a lunch special that is weekdays + weekends until 3 or 3:30 compared to other places that end a bit earlier. That being said, the sushi was consistently been a 4/5. Certainly you'll find better places in Mississauga or the GTA suburbs but Sushi one always has been consistently good. The rice is always the right temperature (my pet peeve is averted!) the fish is good. Their Korean-Japanese food is pretty good - I remember once the bulgogi wasn't good (but it was good most of the time).
The traditional appetizers are pretty good. Sometimes they give you extra - I'm not sure why? Haha.
The woman who serves you is really nice and been at it for a long time. They are open during civic holidays, so you know they're hustling all day, everyday for your business.
For lunch, you get a green tea ice cream which adds to the incredible value going here.