I went to Montreal with a friend just for the weekend and found everything exactly as described as well as Jason's super friendly cat who hung out with us for a bit. We only briefly met Jason himself but he seemed like a genuinely nice and laid back person.
The location was perfect. The pub down the road had amazing food and the metro that is 5 minutes away will take you wherever you want to go.
Additionally, the bed was comfortable, shower was hot, and the wifi was fast. What more could you ask for?
I will try to stay at Jason's whenever I go back to Montreal!