You will not find a better host, than Christian. He was professional, friendly, accommodating and speaks English fluently. We traveled to Paris with 4 grandparents (all 70+ years), two kids (ages 7 and 10) and two adults. The place was spacious, comfortable and clean. When we arrived, Christian spent 90 minutes showing us how to use his appliances and what to do in case of an emergency; and walked around the neighborhood showing us his favorite restaurants, bakery, bank machines, Metro station, and parks.
If you travel to Paris during the summer, you have to stay here. During our week, temperatures reached 90-100 degrees every day. At night it was 80 outside. He has an air conditioner in every room! At one point, one of the bedroom's AC broke down. He had someone come over to fix it within a couple hours.
This neighborhood is so safe. The grandparents felt safe walking around by themselves, and it was their first time in Paris. There is security all around because the police academy dorm is across the street, and the presidential residence is two blocks away.
The metro station is a half block away, and Champs Elysees is 4 blocks away.
The amenities and furnishing are basic and functional. One thing that kept bugging me was the lack of counter space around the bathroom sinks. The bathroom that my husband and I used was smaller than most US closets. I had to get creative in doing my make-up with a handheld mirror on our windowsill. But that's the reality of Parisian apartment.