Marc Et Jeanne's place was very convenient for my family's needs. It was close to two Metro stations (Hôtel de Ville and Châtelet). The major train hub, Châtelet–Les Halles, which we took to and from the airport was about a 10 minute walk. I also like how Notre-Dame was close by.
The area was very lively with a vibrant nightlife. We ended up eating at many of the cafes nearby and there were also a couple grocery stores where we stocked up on basics.
The place itself was clean. There were plenty of spare towels. I liked how one of the bedrooms had a dedicated bathroom. All-in-all, Marc Et Jeanne's place made our Paris vacation very easy. I would recommend!