I would definitely recommend Helena’s place.
It is very clean & close to a metro station - only a few minutes on foot.
So, it is very convenient to go anywhere in Montréal by metro.
Her place is also very neat & tidy - you can tell it has been well kept.
It is great for long-term stay as well since there is pretty much everything you need including washer, dryer, microwave, portable induction cooktop, coffee maker etc.
A lovely garden view room is a nice surprise & Netflix is a plus.
She always responded to my messages in a timely manner during my stay. She is an excellent host.