I recently stayed for 8 days during a work trip to Montreal.
The good:
-Very central location, especially if you're going to the convention center
-Easy check in/check out process. They were able to accomodate an early checkin
-Unit was stocked with essentials like shampoo, dishwasher packs, laundry detergent
The not-as-good:
-The freezer in my unit wasn't getting cold enough and made an audible buzzing sound. Usually would be a mild inconvenience but I'm a nursing mother who needed the freezing capability. I pinged Jeremie a few times and while he responded to my messages and a building manager showed up once to check in, the issue wasn't fixed. This was the main reason I booked an AirBnB versus a hotel and I had to make other arrangements.