I stayed here for 10 weeks while visiting family and found it to be an excellent place from which to explore Montreal and the Plateau Mont-Royal in particular.
The apartment is in an excellent location. You are two blocks away from Avenue Mont-Royal and
right on Avenue Laurier. Both have loads of shops, restaurants, coffee shops and bars, and there is a supermarket not too far away on Laurier. It's also a short walk to the Laurier Metro (subway) station, and several STM buses run on Papineau and other nearby streets.
Despite being near busy streets, the apartment is quiet. Being the top floor, there's no noise from upstairs, but you can sometimes hear people in the apartments below, which would be a problem if they happened to be noisy.
The apartment has two large bedrooms plus an extra sofa bed, so you can comfortably fit large groups of people.
I found the included internet service to be fast and reliable.