We had a wonderful stay. Apartment is clean and our host was very responsive. It is a very solid 4 flights to climb and there is no AC. This would probably only matter during a July heat wave. At night, opening windows to stay cool worked fine. It was a 7 minute walk to Musée d'Orsay and the RER station. Also, right across the Seine from the Louvre. We loved that. Bed mattress is very firm.