This is my sushi place in Toronto. I have tried them all, and ultimately I am always going back to sushi inn. To put it very simply:
1) Sashimi is fresh. I've eaten tons of raw fish over the years, and here you have a constant quality of it over the years, never smelly, never fishy taste.
2) It's not overly expensive. 50$ for two will bring you an absolute feast of sashimi, special rolls and makis. Always going out stuffed outta that place.
3) They have the best dragon rolls in whole city. Be sure to avoid cucumber in your rolls, because the absence of it will give them a more soft, "melting" feeling.
4) There are plenty of servers, so you will never spend a single moment searching for help. This is especially important when you don't have enough time and trying have a quick sushi before going somewhere important.
5) The turn-around is high so you will always get a fresh piece.
6) Bentos are a real value for money, and for a couple of $$ more you can change cucumber rolls for any other from the menu you wish.
7) Spicy scallop maki is awesome
8) Tip for those who feel they need more ventilation: try the downstairs, it's much more air-conditioned ;)