Marion has been incredibly kind to us. She even said to us that we could leave whenever we wanted the last day we were staying.
The apartment itself was very cosy, which made us feel safe and pleasent. Also no loud voices or constant noice were to be heard doing nights. Other than that, the apartment had what we needed, and a very clean and great sounding music player.
The surrounding around the flat was also alright. In Paris - in general - every corner of the city seems safe. There were a beautiful garden just a couple of yards away, which we made good use of.