The location is excellent for anyone coming to visit Montreal. Easy to access transit. Lots of restaurants and shops in walking distance. Very, very clean establishment, and very quiet. Everything you would need is was provided.
The check-in process was a total disaster (for us). The codes provided did not work. Telephone assistance was difficult to deal with and they were almost powerless to assist us with our check-in. We were fortunate that the building manager just happened to pass by and solve the problem for us.
The request for late check-out was a bit of a challenge too.....again we had to deal with the automated system at first then the telephone assistance agent to make the request and had the wait 24hrs for a response. Again they were powerless to give a response and only read (and repeated) the provided scripted reply.
But besides those issues they stay at this Sonder property was Excellent.