I did a solo trip to Toronto and Amy and Graeme's place was awesome. 5 minute walk to the subway to get to downtown easily and cheaply. It is also super convenient to get there from the airport using the subway and one bus ($3.25CAD for the journey - amazingly cheap).
The house is in a nice, quiet neighborhood. It is also adjacent to a lively street with quick food options.
My room was a good size. Bed was comfy and there is a desk/wardrobe for you to use.
The shower is in the basement, which was a little inconvenient, but besides that, the place was great and I would recommend it to anyone.