We had a fantastic 4-day stay here in January 2013.
Michel was an excellent host, from the first stages of planning the trip, right up to our departure. He is full of useful information on restaurants and attractions in the area and is eager for you to enjoy your stay.
The apartment is really beautiful. Lots of space for 2 people, great decor, gorgeous building. Paris was very cold when we visited, but the apartment was warm and cozy all the time. It has a large bathroom (with lots of hot water!), a good sized kitchen with some supplies left by Michel and lots of living space.
It is very easy to reach from the airport. It's also close to the Metro, but we used Paris Bikes, which have a stand around the corner. There's a lovely boulangerie downstairs. It's very quiet at night, but there are some really lively streets close by with bustling bistros and bars.
We would definitely recommend this apartment and Michel as a host.