Our stay with Guillaume was pleasant. Although he wasn't able to be there when we arrived, he had a friend meet us to get oriented. Guillaume speaks English well so that was helpful since my French is far from perfected. The roof top neighbors were friendly and seemed to look after each-other. The streets below are quite diverse with people and places to shop for most anything. There is a bike share about 2 minutes down the street. It's a 15 minute walk from Gare du Nord railway station and perhaps a 10 minute walk to the nearest subway line. It was very pleasant to wake up and have fresh air and sunshine on the outside deck. There is a small lift up to the 5th floor. All the necessities of life were available in this simple but well-situated residence.