My wife and I were lucky enough to spend Christmas (and the week after) at Charles´s apartment. It was a great visit. The apartment is beautifully decorated with art and personal touches. It really felt like home for us. The neighborhood is terrific with a covered food market and a nice market street very nearby and great shopping along rue Passy.
Communication with Charles was very easy. Check-in was easy too. Charles was out of town but the building concierge, Theresa, met us and showed us the flat.
Overall, a great stay. Highly recommended