Isabelle is truly a super-host.
The Montmarte appartment is superbly located and extremely comfortable.
It is not cheap and required that yo are able to climb stairs (since the appartment is spread over several levels), but very well equiped and it makes you feel like a small heaven, an oasis of calm in the lively city of Paris... not even mentioning the marvelous rooftop terrasse.
Communications with Isabelle were fluid and friendly. We were welcomed by Romy, who showed us the place around.
We can only recommend this place.