If you're visiting Montreal I would 100% recommend Simon's place. Simon was an incredibly welcoming host and made the stay really enjoyable and not stressful at all. As well as giving plenty of insight and recommendations for the area.
The room itself is very large, clean, and really comfortable to stay in. Everyone in the house was nice, quiet, and tidy which made the stay enjoyable. It's also in an amazing position with plenty of good restaurants, bars, and cafes all close by.
Next time I'm in Montreal I will definitely book here again!