This place is very nice, and in a very good location of old Montreal. The only thing that overshadowed my stay was there were a few plumbing issues (one of the showers and one of the sinks were clogged, and one of the bathroom faucets were really stiff that it was difficult to use). I hope that the host will address those issues before the next guest.
The parking spot is fairly narrow but we made it work even with a Toyota Highlander.
There's an A/C unit in the living area, but the bedrooms don't have one. But there is a ceiling fan, and the windows open (windows have no screens though).
Other than that, it's in a great location - it's right in Old Montreal, and is also walking distance to other things like Chinatown and Metro.