Amazing downtown location, walking distance to Mont Royale, lots of restaurants and cafes, and close to the green line for easy access to other parts of the city. We also walked down to Old Montreal for dinner one night (about 30 min walk).
My friend and I stayed in the apartment for four nights and slept comfortably on the two murphy beds. My friend also worked remotely from the apartment and the wifi worked well. The apartment itself was clean, kitchen was well-stocked with plates, bowls, flatware, but if you plan on cooking there is no oil, etc. There was standing water in the washer but we didn't need to use it so didn't reach out about it. Like others have said there was a bit of noise from the street, but I'm a light sleeper and it didn't keep me up at all.
Olena had great communication, check in/check out was very seamless. Would definitely recommend!