The flat is in a great neighborhood, located on a quiet side street (traffic-wise. There is a school in that street, so it is lively in the mornings). It is a two-minute walk to the next metro station that services two lines. Lots of small high quality food stores near by and a 15 minute-walk to one of the great department stores, Le Bon Marché.
With 3 BR (and six beds), a living room and a kitchen it is a good balance of space/privacy. 3 showers, 2 toilets, 2 sinks (3 if you count the kitchen sink) - six people can get ready without any long waiting.
Communication was easy and quick over AirBnB.
Great stay - we will be back!