We stayed at Plateau suites for a girls weekend. There were four of us and it was easy to share rooms as both rooms had a King size bed. The beds were comfortable and it was exactly as advertised.
The location is fairly central -about 15 minutes to Mont Royal Park and 45 minute walk to downtown. There are many great restaurants within walking distance.
It is great to have AC and Parking as many places in Montreal do not have these features.
If you have luggage - you can unload on the street and have someone stay with the luggage while someone else parks. This worked well for us as it is two flights up to the suite.
Very lovely place to stay and also very clean. Thank you Yesh!