Room C was bigger than expected and compared to the provided photos. Owners do respond quickly!
Unfortunately, my friend and I spent half an hour trying to open the slide door to our room since the latch was stuck and we had to quietly figure out to open the door in 1AM since we were not instructed on how to open jammed door. Air-conditioning is only available in the kitchen, not in the room so it was quite humid even at nights. The shared washroom was pretty clean but the shower curtain was turning brownish on the bottom. I think we were lacking toilet papers since we only had 3.5 toilet papers for 4-5 days for 4 people. In addition, toilet paper holder should be installed since we didn't like the fact that we had to touch unsanitary core of the toilet paper at every usage. Lastly, the rooms aren't sound-proofed meaning that both my friend and I woke up at 4-5AM due to drunk people screaming, yelling and running across the floor upstairs and the same people woke us up 2AM the next day by laughing and stomping on the floor who certainly didn't care about the quiet hours.
However, there are good cafes nearby and if you are planning to take Uber in Montreal, you will be charged around $25-40 per ride if you are planning to go to Old Montreal, Parc du Mount Royale or other places in Downtown.