The apartment at 6 Rue Descartes is a lovely apartment, with two large bedrooms, a small kitchen, and a good bathroom/shower. The location is good in that it sits in the middle of the Universite. De Paris. There are many cafes and restaurants around and it is near the Blvd. St. Germaine. The two flights of stairs are accessible though winding due to the age of the apartment. The one issue we had was the key. We checked in then went out to explore and when we returned the key would not work. We tried for three hours to contact the owners but nothing worked. Finally, we got a new key. I strongly suggest the owner provide a working emergency number.