We enjoyed our stay very much. Our kids (4 and 8) loved having kids rooms to stay in and a friendly cat to pet in the garden. We loved the personal details and the fact that people really live in this flat.
It was a special and unique apartment, so well connected, yet located on a very quiet side street.
Easy walk to Montmartre and great metro connections.
As other reviewers wrote, you must be able to handle a steep (spiral) staircase and low ceiling to enter the double bedroom.