There really aren't a lot of options in Montreal and so from that standpoint, this place works well. It is big and has plenty of room for a large group. I'd say you could easily have 15-20 people here, though I think Badria prefers smaller groups. It is far from downtown, but Uber is easy to get (though pickup times are ~10-15 min).
The disadvantages are that the house is not taken care of and large parts of it are in disrepair. The oven and microwave oven did not work. The furniture looks super nice in the photos but in reality it is extremely cheap (like flea market cheap) and a lot of it is broken / falling apart.
On the other hand, the property is expansive and it has tons of rooms for people to congregate (we had 4-5 total areas where people would hang out, including the backyard). Having a pool is amazing - and the backyard is big.
I'd come back here but with lower expectations than the price tag or the pictures.