Charles-Antoine is a fantastic host. This is his apartment and he met us there and gave us the tour. He had a bunch of suggestions for things to do and places to eat. He gave us a little history of the building and the neighborhood.
The apartment itself is warm and comfortable. My wife and I felt very at home there. It's super close to the metro and easy to get around from. Monmarte is a bit further out so do plan for some travel time to get to museums and the core of Paris. We never spent more than about 40 minutes getting to any location we went to from the apartment so it's not bad.