Jean-Michel is a great host. He's responsive and the booking process was smooth. The apartment is located at a quiet area in Montmartre with walking distance to Metro, lots of restaurants, bakery shops, supermarkets so basically everything you need can be founded. Sacre-Coeur is also nearby. We stopped by there in one evening when on way back to the apartment and the view of the Paris city from there is breath-taking.
Apartment itself is clean, spacious and charming. The kitchen is big and well equipped. Overall a little bit dated but not a problem to me. This is not the feel of a 5-star hotel with all new and white bed sheets, no not that kind of style. It's more like at your best friend's house which will make you feel comfortable and be yourself.
There are some stairs from the street to the main entrance of the apartment but totally manageable even with big luggages.
I'm particularly thankful for Jean-Michel's flexibility on the check-in and check-out time. Very helpful. I'd definitely recommend this apartment to my friends.