I had to leave this apartment after a one night stay. When I walked into the apartment there was a strong musty, earthy smell. I started to look around and found black dots all over one wall, which looked like mold or mildew. This made me very uncomfortable because I'm allergic to this, so I ended up leaving the apartment after 1 day. The apartment was clean elsewhere though.
This apartment is very small and cramped (especially the bathroom). Also across from the apartment (which is on the ground floor), is the trash room for the building. This is a problem, because you can't open the windows to air out the smell since bugs will be constantly flying in due to the trash near by.
Location wise the apartment isn't too bad. It's farther away and a different area of Paris I've never seen before. More local, with great restaurants near by.
Helene is pretty responsive as a host, however the issue with the apartment could not have been solved during my stay. She had a housekeeper and builder come check out the walls with mold / mildew while I was there. Check-in was also very simple.