Communication: It has been absolutely perfect.
The host: Though I haven't met Patrick in person, he organised everything ( especially a parking permit for the area if you arrive with a car) perfectly. If I had any question, he was always quick to answer when I wrote him. All in all, he has been a great host.
The location: The appartment itself is very modern and if you are looking for a quite spot in Toronto - Patrick's appartment is the place to go. Another advantage is that if you feel like cooking for yourself, the kitchen is fully equipped.
The area is really nice.
Public transport is within walking distance (maybe just a few hundred meters) as well as restaurants, coffee bars and supermarkets.