The apartment was terrific for our family visit to Paris. The location is great, being close to many tourist sites and metro lines.
The 5 of us managed fine with the single toilet and liked the 2 shower rooms.
The place is new and the beds were very comfortable. Being on the ground floor meant that there was no view but we were pleased that we didn't have to climb up stairs. Some of the rooms are internal without windows but it was okay as there is ventilation using a roof window and an internal window between the rooms. The apartment was very quiet during the night and we heard no external or street noise.
I highly recommend this place for a family that needs a comfortable base for sleeping and plans to spend most of their time seeing the city.