Pros:
it's super central - only a few minutes away from Metrostop Berri UQAM you can hop on the orange, green or yellow line anytime. There is a supermarket and drug store close by as well as Sainte Catherine street with many bars and restaurants. If you're a student there is also a big library to go to.
The kitchen is basic but well enough equipped to take care of yourself for a few weeks. Washer and dryer can be used for free. Check-in is independent and worked perfectly for me.
Cons:
The shared bathrooms were rarely cleaned. There was often a lot of hair on the floor, vacuuming regularly would have been nice. Also, even after I asked for it via chat, the toilet paper wasn't refilled for days and that happened several times.
There is no storage space at all, I didn't even have a hook in the wall to hang my jacket. The only mirror is on the ground floor in the seating area, would have been nice to have one in the room or at least the toilet.
All in all a reliable accommodation for a short-term stay. If you plan being in Montréal for a longer time I wouldn't recommend it. I think the cost-benefit ratio is not good enough.