Very pleasant, modern place! All the amenities worked. Grocery and drug stores were within a fair walking distance. There were nice restaurants and bars close to this aparthotel.
When I was there from early to mid August, there was still construction going on. But it wasn't too loud, for me. Please note that I kept the windows closed at all times, as there was a heat wave. And I spent most of my time outside of the aparthotel to experience Montreal and surrounding areas.
Nights in the aparthotel were ideal for me. I am highly sensitive to noise, and I still got some sleep! And the construction noise didn't wake me up! The walls and glass were thick, muffling every sound. I was even aware of people talking loudly some nights, perhaps partying a bit, but they didn't party all night long. And they didn't disturb me at all. Overall, quiet hours seem to be respected by all guests.
To communicate with the staff, it was best for me to text the number they gave me. They communicated with me on AirBNB prior to my arrival to make sure I understood the finances and check-in process. But when I was actually there, I got delays in my responses on the AirBNB app. When I texted the number they gave me, I got immediate responses.
Above all, I am highly satisfied with my experience at Sonder Montréal! I would even come back here if I had to be in something like temporary housing for some time.