The positive: good location close to metro, shops, cafés and within walking distance to arc de triomphe. The building has an escalator in case of heavy luggage and the room is spacious and clean.
The negative: our arrival was very unpleasant because the host misread our arrival time and the housekeeper essentially told me that I was in the wrong. She took us to the room, stood at the door and pointed to our room, the kitchen and bathroom. She didn't tell us about towels and there weren't any put out for us - we asked later after she left, only to be told they were kept in a locked cupboard.
Given the price, size and location, it was a good deal for one or two nights in Paris.