The apartment is located in an excellent neighborhood - Le Plateau-Mont-Royal. It is very close walking distance to two great strips to walk down (Boul St-Laurent and Rue St-Denis). Both of these streets have tons of unique restaurants, bars, and shops. The apartment is also ~10-15 minute walk to the closest metro station. It's very close to the Mount Royal park as well. We were able to walk everywhere we wanted from the apartment (Old City, Old Port, downtown, Gay Village and Mile End neighborhoods) with no problem.
The apartment was very clean, exceeding our expectations. We were pleasantly surprised by the bathroom, which seemed to have had new fixtures installed quite recently, including a shower with excellent water pressure.
The apartment felt safe (doors and windows locked securely). To get to the apartment door, you first have to key into the building.
The apartment was a great value for the price. We definitely place more importance on the location of the apartment vs. size or amenities. We essentially just used the apartment for sleeping and getting ready each day. One downside of this apartment (the reason for 4 out of 5 star review) was the uncomfortable mattress and pillows. Perhaps this was a matter of personal preference, but the mattress was too firm and the pillows were too flat. The bed was also short, so if you're 6' or taller, it would likely feel too small.
That said, we had a great experience with the apartment and overall are very happy with our choice. All things considered, I would stay here again.