I deeply recommend this apartment. For my 2nd trip in Quebec City, everything was perfect. This place is so closed from the old town (~600m) and near one of the Main Street where you can find everything you want/need (bars, restaurants, shops, grocery..)
I didn't see Celine but she gave me all the informations I needed to have a good stay. The apartment is really cute, spacious for 2 persons, with everything you need and the neighborhood is calm. In short, this is the perfect place for your stay in Quebec city!