The Airbnb is located in a very lovely part of Paris and if you can overlook the fact that it is really tiny (especially for four people) it is well worth its money.
It has a well equipped kitchen and bath. The only downside is, that you can hear pretty much everything that is going on outside in the hallway.
All in all we had a very nice time in Paris and we can recommend this Airbnb to people who want to travel on a budget an still get a lot of comfort.