This apartment is in an older building, and as such, has features of older buildings, some of which I didn't know about. For example, the heat is controlled by the building, and there isn't a thermostat in the room. (I spent some minutes looking for the thermostat). However, when I contacted the hosts, they were quick to reply with the explanation. The solution was to open the window and let some of that fresh and cool air in. The elevator moves slowly, (but surely).
Although it's an older building, the flat itself had some updates - the bathroom looked updated, and everything was very clean. Bed was comfortable - only thing I'd suggest is if you are light sensitive, to bring some eye shades, as two of the smaller windows don't have blinds (Erol and Jay mentioned they'd be working on that).
The location is great - I was visiting my son who lives in the McGill 'ghetto', and it was only a few minute walk to his apartment, and also not too far a walk to other locations we visited. Musee des Beaux Arts, the Science Museum, the Basilica and old Montreal, the top of Mont Royal for a great view of the city (and some serious exercise for someone who lives in a very flat area), Concordia university, and of course, La Banquise for delicious poutine and Schwartz's deli for a great Montreal smoked meat sandwich. The Bay store and many other shops are also very conveniently located (and I'm wearing socks I purchased there at this very moment as I write this).
I did use the wi-fi which worked well, didn't use the kitchen - too many great restaurants to visit during my short stay.
In summary - clean, great location, simple, and worked for my needs.