This place has been recently renovated and a lot of thought was put into fitting as many things in a relatively small space. We were travelling as a couple with a baby and for us the apartment was big enough but I cannot imagine how 6 people would comfortably share the flat.
On the plus side, the apartment is conveniently located in a residential area of Paris. If you like walking, a lot can be done on foot.
We found the apartment a bit noisy. It is on the ground floor and you hear everyone who enters or leaves the building. Luckily it is on a quiet street.
There is a very steep staircase down to the main bedroom which was not ideal with a small child.
Communication with the host/agency went well but unfortunately the apartment was still being cleaned when we arrived at 3:30pm and we were asked to come back an hour later.