It was alright for a short stay.
The host was very kind and upon arrival she told us everything we needed to know such as how to close and open the door and about the humidity inside the room and how to keep the place from getting too humid. At night time, in february, it was however too cold to keep the window open to fight the humidity. Although we turned up the machine, which is supposed to help with the humidity, it didn't really do much.
Compared to other places in and near Paris the price was good, the location as well.