Marie's apartment was perfect for a family trip with three generations. The apartment is very centrally located and within walking distance of Gare du Nord. It was a little difficult for an older person with mobility issues to get around the apartment as there are stairs to all of the bedrooms. We didn't have too many problems, but if the mobility issues were worse, it would have been difficult. The kitchen has everything you need to have a meal together and plenty of cups, glasses, dishes, and cutlery. Bathrooms were also good.
Marie's communication was excellent. The building turned off the water intermittently on two days for repairs and she informed me directly.
Would definitely recommend for a large group going to Paris.