If you use Via rail to come Quebec city, and if you have a big heavy baggage, this loft will be your best choice. Here is really close to the train station. Less than 10 minutes by walk.
The room was absolutely clean, has enough amenities like towels or paper rolls. Kitchen also has enough kitchen tools, but no microwave.
Both upper town and lower town is close. It just takes around 20 minutes by walk. I didn't use any public transportation for whole 5 days.
Since this loft is located in Saint-Joseph street (it has some pubs and restaurants), it can be a little noisy at night.
In the end of the corridor, there's a washer and drier. And you can use storage to put your baggages.
It was very nice. Strongly recommend.