Our stay at Jean-Claude's flat was great. The apartment was very clean and well-decorated and furnished. The kitchen was well-equiped with several pots and pans, silverware, glassware as well as nice appliances. We particularly enjoyed the Nespresso expresso machine with capsules included! The neighborhood is great and although the street can get noisy on the weekends, the windows are double pane so we had no problems. Our host was great and amazingly kind to give us a ride to Gare de Lyon. I guess we had so much luggage that no taxi wanted to drive us.
Thanks a lot, Jean-Claude! The only little hiccup we had is that the apartment did get hot during our stay. We visited during a very hot week and felt that the fans were not enough to keep us cool. I guess you can get some breeze coming in if you leave the windows open but I did not want my kids waking up at 6 in the morning with sunlight/street noise so I kept the windows shut with the blinds down. But, as I said, my overall experience was great and I would recommend it to a friend.