I stayed for 1 week at Dominique's flat. It is a nice little one bedroom flat very close to the Etienne Marcel metro stop. It has a comfortable double bed and the heating works very well in all rooms. Great wifi with a very long password! ;) The flat is not super fancy but a perfect place to have your own place in Paris. I believe the windows are new so things were pretty quiet. The flat is on the second floor of the building with a fairly old and narrow staircase. Need to be careful on the steps. I was greeted by Catherine at the allotted time and she was quite helpful explains everything to me in English. If you call a taxi know the postal code. Lots of bars and restaurants in the area too. We felt safe and secure in this flat and liked how easily we accessed the metro. It is not a ritzy area though. I would stay there again.