It was wonderful!
Sacre Coeur was see from the window, to the Montmartre walk only a 15 minutes, to the center 20 minutes or 3 kilometers (~12€ Uber price). Often I walked, because it is interesting for me to look at real life on the streets.
Original interior in the apartment. Fluffy cats are met after the walk. When I worked at a laptop, one cat came to me and lay down under my arm.
Perfect place! Great hostess!