Sascha's Home Away in Quiet Montreal is nice, clean, and well-located within the easily accessible (by both public transport and car) Hochelaga neighbourhood.
The space is great. It has decent, high-speed internet, and, for those inclined towards doing some home-cooking, the kitchen is decent and reasonably equipped.
My wife and I will most likely come back for another visit.
There is one important drawback to this place that I believe is noteworthy: the king-size mattress in the main bedroom is severely sagged. It caused me some grievance and some back pain while I stayed there, and I would advise replacing it as soon as possible.