It was great staying in Sophie's house. She cannot speak English well, but really tried to explain the details with the translator app. and her house has some everything, like cooking equipment, wifi, hair dryer, even needle and thread. It was cozy and clean. The bathroom and sink was small, but it was not inconvenient. If you have a big carrier, you will be hard to carry it to house because of 3rd floors. (there is no elevator)
Entirely, it was good and I have a great experience in Paris.