I stayed in Stéphane's place for about three weeks in Aug/Sep 2021. It was exactly what I was looking for, very clean, in an interesting and central neighborhood with access to several metro lines (I'm pretty sure you can get to anywhere in central Paris within 20 minutes from here).
Check-in was easy, and Stéphane was very helpful and flexible.
Like many Parisian apartments, the place is quite small, but for one person who travels lightly it was just right. I was very much at home in the apartment and in the building, and it would be hard to improve on the variety and quality of shops and restaurants nearby, including a supermarket that stays open until 10pm (later than average for Paris).
So in short: strongly recommend Stéphane's place if you don't mind the small size!