Jean Charles is very friendly, helpful and communicative. The apartment is a real inhabited "apartment with soul" in an old tenement house and not an apartment prepared and furnished only for rent. Nearby are stores, restaurants, 2 metro lines, buses. In 5 minutes on foot you can be at the Sacre Coeur and admire the panorama of Paris. 15-20 minutes walk to Gare du Nord where trains go directly to CDG airport. I really recommend this place!