I was in town for a conference at the Palais de Congres and this spot was absolutely perfect. It was directly next to the conference center, and less expensive than the hotels nearby.
The place itself is also wonderful--loads of room to spread out, and very comfortable.
The location is very convenient to Old Montreal, and there were countless spots for breakfast and dinner nearby.
Nadia and Sam were also very flexible with my flight that didn't leave until late in the day; they let me leave my bags in the apartment even after I checked out, which was a lifesaver.
I can't recommend staying here highly enough!