It was a pleasure to be Claude's guests. He is a very nice person and will give you a lot of informations for your stay in Paris. I gave only 4 stars to the check-in, because we had to wait about 20 minutes for him, but when he arrived with his friendly way and a big smile on his face, we weren't angry anymore :)
The apartment is a nice studio in the hearth of Montmartre. It is very confortable, has anything you need and is situated in a perfect position for quickly getting to various attractions of the city. We highly recommend it!