This apartment is far from luxurious. The walls are paper thin and you shut the front door from slamming it close. There is no latch.
Wifi was a nightmare. I also specifically asked for 2 sets of keys and only 1 set was initially prepared. Sofa beds are in poor condition, despite me specifically checking via chat (as I trying to decide whether I should also book a hotel room for two additional guests).
Also, a warning for families with kids: the adjacent street is what appears to be Paris's red-light district.
It does have 3 showers and 2 toilets which is nice, but I would say 6 adults max and be prepared to hear lots of noise from each other and other guests.