Jonathan's apartment provides a good base to explore Toronto, for three main reasons: it's affordable, convenient, and the mattress is awesome. My boyfriend and I stayed over during Easter weekend. The location is so central that we were able to walk everywhere (we do love walking though). We never actually met Jon, but his instructions to find the parking and get inside the flat were very clear. There was one other guest during our stay, but it wasn't an issue for us and we could always access the (shared) bathroom when we needed to. We didn't use the kitchen at all as we preferred eating out (so many good restaurants to try in Toronto!).
All that being said, you should be aware that the walls are really thin and you can hear pretty much everything that goes on in the flat. If you're a light sleeper, it might not be ideal for you. Also, I wouldn't use the word "cozy" to describe the bedroom. It's a bare room, with a bed, a desk and a closet. Like the flat itself, it has all the necessities, but not much charm. I'll repeat myself: it's a cheap and convenient base to discover the city. If you're on a romantic getaway with your SO and looking for a cozy home, look elsewhere. BUT it's perfect for those of us who don't care too much about where they sleep, and would rather spend their hard-earned cash on restaurants and experiences. All in all, good value for money.