The apartment itself was sufficient for a short three night stay.
Although the host did not stay to show us around he did respond in a timely and nice manner to messages through the Airbnb app. When we tried to sleep we found no curtains. Only after messaging Nicolas we found the shutters outside, requiring you to open the window before being able to close them.
It has only few facilities and the washing machine did not look particularly clean. To take a shower required stepping into the small bathtub, which to me is uncomfortable as it can get slippery.
The location itself is quite good. It is only a few minute walk away from Sacre-Coeur. Subway stations are nearby as well as some stores, cafes, and bakeries.
All in all our experience was good, however I don't think I would like to stay here for more than two or three nights.