I didn't get to meet Florian but I was met by his brother Victor who went to great lengths to explain the apartment to me. He also provided great recommendations for restaurants and bars in the area. The apartment is very spacious and clean. The bed is also very comfortable. The location is very convenient to all the tourist attractions... i managed to walk to most important sites. Or you can easily catch the metro from Saint Paul or Bastille. Gare du Nord station is only 15min drive away and a €10 cab fare.