I can really recommand the stay in Mark's airbnb when you are looking for a small comfy affordable place.
Mark welcomed me warmly, you could always talk to him when you need help...or just a funny conversation.
There was a big variety of spices, oil and sauces I could use to cook, generally Mark likes to offer options to his guests.
To Old Québec you need 30 min by foot (but keep in mind, it's very steep), there are bus stops nearby as well. What I would definitely check out are the Montmorency Falls...quiete impressive and super easy to go there by bus (25 min drive with the 800)!
Anytime again!