Even we didn't have a chance to meet up Charles, but everything is very smooth and easy to get the key or return it, we love to stay at his wonderful apartment, the location is prefect, very close to Eiffel Tower and you don't have to worry about safety issue, even i walk around at midnight over there still can feel very safe everywhere, it is easy to reach from CDG airport, he can answer all your questions in very clear through email or Airbnb, if you go Paris we highly recommend you stay at his apartment, Thank you Charles we love your apartment