We stayed here as a family - two parents and one child. Really happy with the apartment. The best thing is the position in the neighbourhood. You are just around the corner from Merci, APC, etc. Also, Marche Des Enfants Rouge for groceries and dining. We were also close enough to the Batobus and Centre Pompidou to keep my son busy.
The apartment itself is tucked away at the rear of two quiet courtyards. We heard nothing at night, and being on the fourth floor meant we had loads of natural light and a rooftop view. The space is thoughtfully laid out. The kitchen was practical and we were able to prepare some simple meals. The bathroom is nicely designed and the host has supplied a good hairdryer which is thoughtful.
Beds comfy and we all got a good nights sleep.