Charles was a very nice, organized, and helpful host. The apartment was comfortable, clean and roomy enough for our family of three. It is also very nice to feel a bit like a real Parisian while looking out the apartment windows into the courtyard below (complete with statue). A slight concern after we settled in was the height of the bathtub walls, but the shorter members of the family did manage to carefully climb out each day without mishap.
The location is VERY convenient for food, Metro, etc. and lots of fun to explore. I would definitely recommend Charles and this Montmarte apartment to anyone visiting Paris! C'est tres bon!