We had an enjoyable and comfortable stay at the piano-suite for four nights with our almost-2-year old son who was in heaven with all the musical instruments in the apartment. Our room was large and spacious with our own private bath/shower (toilet is outside the room and is shared with the other room/guests). Being centrally-located, it was perfect for us to go out explore and walk around Paris half of the day, come back for a rest, and go back out at night for dinner, etc. Many of the "must-see attractions" in Paris are so close by, practically within walking distance from the apartment so that's a huge plus for anyone staying here.
Speaking of central location, getting from the CDG airport via the RER B to Chatelet Les Halles was very quick (under an hour) and efficient (as of end of May 2022, all elevators/escalators were working, including the St Eustache exit closest to the apartment). Also, we didn't realize breakfast was included and that made it even better! Nespresso coffee, various teas, croissants, muesli, milk, juice, bread, fruits, jams, honey, etc.
Best of all, we got to know our host and his love and passion for music and all the musical instruments in the apartment. Marc is very easy-going, considerate, always made sure we were okay, and saw to it if we ever needed anything. Thank you Marc for everything and good luck with your future musical endeavors!