Definitely very expensive, but also pretty convenient. I try to buy everything online, except when there are deals. I also like the new rent-a-textbook options for packages that are in your best interest to buy here (such as textbooks that come with a solution book, or subscriptions to online learning activities).
Moral of the story.
Only come here for packaged textbook deals. Everything else can be bought on Ebay, and amazon, or any other site for half the price (and instantly for ebooks, it's also environmentally friendly.)
-Also they have sales on clothes and electronics usually at the start of each semester. That's the only time I would reccomend buying any UofT gear here.