The sad sandwich board outside on the street and inside the Grange make it seem like a sketchy place to dine. I have only had the take-out special here which gets you two types of rolls (6 pieces or a handroll) for $5.50, taxes included. They never seem to be very busy which is a bad sign for a sushi place, but so far all of my sushi from Gallery has been fresh and I've never gotten sick from it. The bonus to them not being very busy is that your food is prepared very quickly. They offer seating while you wait for your order to be prepared and will happily give you wasabi, soy and chopsticks with your food.
While it's definitely not the best sushi in Toronto, it's not bad for the price and convenience.
Great prices. Quick to prepare. A little sketchy.