Starting the the assumption that Subway is a healthy-ish fast food option and nothing more, I wanted to review this location, in particular. My Subway of choice is the location in Robarts Library on the University of Toronto campus. The staff there are nice, the bread is fresh, and the cheese is relatively plentiful. None of those are true of this location. The amount of grated cheddar they give you here is maybe 1/3 of what you'd get at Robarts Subway. Also, I saw the guy at the till, presumably the owner, not ring in purchases. People aware of how things work with some small businesses will understand that this means he is not paying all the taxes he should.
The upstairs area is too hot. You'd think that the windows would ameliorate the situation. They do not because they are screwed shut.
Never coming back to this location if I can help it. If you don't mind the students (and Aramark, I'm presuming), go to the Robarts location. Folks there are very friendly and would be happy to take your order.