I rented Francois' unit in Paris for my brother and sister-in-law. They had a 15 hour layover in Paris and were able to get to the place easily by train (RER-B from Charles de Gaulle Airport.) They found the neighborhood active and very central, and there were many choices of restaurants nearby for dinner. The place was comfortable and quieted down at night, providing a good nights sleep. Since the metro station is so close, riding back to the airport in the morning was easy.