I came out of my way to try this place but I was decently surprised. It's pretty affordable, and right across the street from Wonderland (and near Vaughan Mills).
The restaurant is pretty small and easy to miss, I've never noticed it there before. However the decor inside is pretty nice and clean, which I especially appreciate in a sushi joint.
Their lunch prices are considerably more affordable than other all you can eat sushi places nowadays, so I can see why this place has pretty good reviews. Their food is good, nothing special. My only issue was that their sushi pieces have a bit too much rice, which can get you full pretty fast.
I would probably go back if I'm ever craving all you can eat sushi while I'm in that area already, but I wouldn't make a mission just to come.