I stayed in Marie’s lovely apartment for three weeks in order to learn French in ELFE school, just 5 minutes away. The main advantage of this apartment is its fantastic central location, which permits you to dive into the Paris’s atmosphere from the first second you leave the apartment. Despite being in a busy pedestrian street, the nights were quiet (provided you close the windows to the street and leave open the window above the bed to the inner courtyard). Nice feature, not mentioned by other reviewers, is that this apartment has actually two toilets, one separate on the ground level (but quite small one) and one in the bathroom in the upper level of the duplex. It is only limited headroom above the washbasin in the bathroom (due to the sloped ceiling) and low position of the mirror there that I disliked, especially during daily shaving.
Marie was very friendly and responsive host, always easy to reach and ready to help.
Altogether I can say that the apartment was above my expectations and I can highly recommend it.