I stayed at Chateau de l'Argoat for two nights. The hotel staff does a good job keeping the place clean and pleasant. For example, in the breakfast room there are posters on the wall advertising current arts events in Montreal. At first, I thought they were just artwork, because they were beautiful, and artfully arranged. Picking my way through the French, I realized they were all current. The staff does many other little things to make one's visit work.
The building is old, and there is a lot of historic fabric left, even though there have been renovations. In our room the paneled and louvered shutters were still there, and the doors were through mortise and tenon original doors.
As someone who doesn't speak much French, and had never traveled outside the US before, I found the staff helpful in navigating the city and its parking rules.
I hope to return in the summer with bikes.