We had a good stay overall. Apartment was clean and easily accessible with the door codes.
If you're arriving on the weekend it looks like the street is pedestrian only which makes loading and unloading difficult. We parked behind the building on rue Notre-Dame-des-Anges for the 10min to unload. Car parking is 5min away and an easy walk, no issues with that.
As noted wifi isn't really usable in the bedrooms, it looks like it's being broadcast from the floor above and doesn't have the strength to reach into the back.
There is some noise on weekends when people are on the street but our daughter didn't have any issues sleeping, whitenoise from the A/C unit helps.
Overall a good base for adventures into Quebec City and the surrounding areas.