Decent hotel.
Minuses:
Small rooms and smaller beds, WiFi is slow, and breakfast is cold food. Also there's only street parking, which is difficult; valet parking costs $27/day.
Pluses:
Great location, cool building, friendly staff, fancy name
By the way, strange that all other reviews are either 1 star or 5 stars. My review is probably the most accurate, though this was only my first stay. Would I stay here again? I'm not against the idea, I might try other hotels first, but if I'm back in Montreal on business, I might just be posh and lodge at the Chateau Versailles.