There are three items I have tried and very much enjoyed.
1. Agedashi tofu (tempura tofu)
2. Salmon sushi pizza
3. Red bean ice cream
There are several things I like about Simon Sushi:
-lemon water is icy cold and refreshing
-complimentary miso soup
-you may be offered edamame
-they give you TWO big scoops of ice cream
While their salmon sushi pizza isn't quite like what I'm used to eating at Wasabi (keele and bloor), it was quite scrumptious and I very much enjoyed it for what it was. Note: there are no onions on it, and the mayonnaise isn't spicy.
I would return occasionally if I'm nearby, hungry and craving those items, but I wouldn't go out of my way just to eat there.