Everything was fine during my stay in the Jean-François apartments. The flat was clean and even nicer than in the photos. The room with a view of Parisian gray rooftops was really beautiful, especially in the early mornings.
The 11th district is a super-option if you want to feel the Parisian way of life and be near to the city center. The district is very beautiful and full of nice cafes, bars, and bakeries, where you can try the best croissants in your life for the normal price. :)
The communication with the host was quick, clear, and smooth. Jeff also allowed me to leave my luggage in the flat and pick it up later in the evening before I left for the airport.
So, I can totally recommend Jeff's apartments!