Everything about this place was better than expected.
First, the location: this apartment is on the most important street right at the heart of Old Port, the most historical part of Old Montreal There is plenty of old streets, historical buildings, great restaurants, and interesting galleries around. While the city has efficient public transportation, we actually never had to use it, as this house is in a walking distance from most important places in Montreal. For example, it is only 2 blocks from Notre-Dame Basilica. To fully appreciate this historical location, visit the nearby Archeological Museum (which is only a block away) and you can find this house on the replica of small area of the town depicting how Montreal was established and evolved.
Second, the apartment itself. It is in an old, historical building but it is very well maintained. There is a kitchen area with a refrigerator, one bedroom and another bed in the common area, nice bathroom - all stylish and clean. There is an AC unit as well, just in case if you visit when they get hotter than expected weather.
Finally, the host: very nice and responsive, quite helpful. We arrived really late when most places were already closed and he shared some basic food items with us, to get us started.
We are already discussing when to come to Montreal again, hoping we could stay in the same place!