Overall a cute place for a weekend stay.
+ : great and easy location, close to Marais which I love, quirky style inside the apartment. great common area. Hosts great to communicate. Coffee machine greatly appreciated.
- : we felt like we were intruding on a family life, as there was no space made for us, especially in bedrooms. No place to empty your suitcase, not even a shelf (except in the fridge), we had to come up with strategy not to mix our personal stuff with hosts' so we don't forget stuff when leaving. i.e. no space to hang up my dress. also, very bad sound insulation (typical for paris apartments), neighbours upstairs pretty loud (music suddenly went quite up around 1am on saturday night). I would also change seemingly old pillows, no excuse these days to have old bedding.
Knowing Paris market a bit, this is a good option especially for a younger audience which is not bothered by a bit of quirkiness.