William is a wonderful host. He was friendly, helpful, informative, and easy to communicate with. The apartment is located in a wonderful neighborhood. Just around the corner from the apartment, we found a wonderful bakery, a great little wine shop, a nice fruit and vegetable stand, and a generic but useful G20 market.
The apartment has all of the comforts of home. Some people may complain that it has no TV but why would you want to watch TV when you are in Paris? The view of the Eiffel Tower is amazing. My wife and I would sit by the dining table with a glass of wine in hand and watch the lights change on the Eiffel Tower every night. We never tired of this view. Plus when we open the shutters each morning, seeing the Eiffel Tower was a very pleasant way to start each day. There is a small lift in the building which we used for take our luggage up and down as the apartment is on floor 3 (or 4 in the US as the ground level is 0).
All in all, my wife and I had an extremely enjoyable time in William's apartment. If you are interested in a comfortable apartment located in a nice neighborhood and provides a spectacular view of the Eiffel Tower, I would highly recommend this apartment.