This is a great place to stay with a group. And they are certainly filling a much needed niche in the nicer "large group" listings. Most of the other airbnb spots that can handle 8-10 people in this neighbourhood were like a flop house college dorms or a military barracks. This listing is very accurate to the photos and descriptions, however the pictures are taken with a wide angle lens (as most listings generally are) and the space is actually a little tighter. One of our group commented that "it's like a boat cabin" meaning that everything was laid out in a tight and efficient way. The rooms are small but totally workable, the common space was big enough for our group of 10 to hang out comfortably without feeling cramped and the roof deck is a huge plus, as it also easily accommodated a large group. The main bathroom is normal sized and doesn't feel cramped but the upstairs bathroom definitely evokes the "ship" feeling. The hosts are extremely responsive and courteous.
As a previous reviewer noted, one of the rooms is open concept without a door and anyone walking upstairs to the deck passes by that open bedroom. There is another bedroom that you access by walking through the open room. So essentially 6 people split into groups of 2 can stay in rooms with a door that closes (2 kings split into 4 singles and then the bunk bed room) and then 2 people in the open concept room (1 king split into 2 singles) and then 2 people on the fold out couch for a total of 10. It worked well for our group (we were a 20-year reunion of old college guy friends who didn't need privacy). The other thing to understand is that the whole building is broken up into units like this. I think they have 8 or more. Some of the younger people booking the other ones were sometimes loud and raucous, but the spaces are well insulated and we only heard them when we were in the hallways coming and going from our unit. Once we were inside the noise was very muffled and not disturbing. The kitchen was well equipped and the knives were actually somewhat sharp! (We were all joking about how often you stay at an airbnb and have to go buy a kitchen knife if you want to cook anything, but not in this case.) This area of Montreal is a personal favourite and there is so much to do within walking distance.
All in all it was an uplifting place to stay for our reunion.