Flat is in a fantastic location. View of Notre Dame is unique.
Sadly, we found the entire place versmelly. Poor cleaning. Poor ventilation, all windows were closed on arrival. It was not a nice welcome.
Bathroom was not very clean. Bathtub, faucet tap, sink and toilet need proper cleaning. Nothing smell clean or fresh. Used dirty soap was left on the sink for our use, this was very tasteless.
Kitchen sink was not properly clean. We did not use any cooking/kitchen utensils, as we felt very uncomfortable with them.
Maybe is best to go to another place or to a hotel.