Jean-Luc was a great host and his apartment is just as described in the photos - modern, neat and clean. Jean-Luc was very quick to answer questions and make sure we had all the info needed to get into the apartment. We picked up the keys at a nearby Irish Pub using a code he sent us. It was quick and easy, but the pub was a little distance away given all of our luggage, so we followed the advice of other reviewers and held our cab at the pub while we grabbed the keys.
There is no clutter in the apartment, so we felt very comfortable settling in with our things. As others have mentioned, it is on the 2nd floor (that's 3 floors for Americans) and the stairs are narrow, so getting luggage up and down is a chore but you only have to do that twice! The space is not large, but was plenty for my husband, me and our 5 year old son. There was shampoo, soap, dish soap and a hairdryer. There is also a washer in the apartment, although we never used it.
The location of the apartment was great. Of course you occasionally hear street noise, but it is overall very quiet. It was very hot during our stay, so we slept with windows open, making it louder than it would have been otherwise. There is one small fan, which helped with the heat, but another, more powerful option would have been nice. It was about 90 degrees during our stay.
We walked most places easily - Musee d'Orsay, Louvre, St. Germain area, Jardain du Luxembourg, Musee Histoire Naturelle. There are several cafes and shops nearby. We loved Eric Kayser - great Chocolate Croissant, baguette and coffee. The cheese shop across the street from there was fantastic, too! Both down the street from the apartment, turning right as you exit. Going left out of the apartment was a great Epicerie, where we picked up food for dinner a couple nights.
All in all a wonderful stay in Paris! We highly recommend Jean-Luc's place and hope to be back!