Paris is ours! We can't imagine anybody would regret visiting this city. And we made our third trip.
Montmartre is great and this apartment's location is OK. Very close to Boulevard de Clichy/Pigalle, only two short blocks away. If you have kids 5-10 years old and up, this is a manageable distance in neighbor's notorious hills.
However apartment's condition is not pleasant. Size is significantly small but useful area even worse. Apartment is filled with lots of personal items, toys,... not only shelves but even floors. Max walk-able area in bedroom is 1 -1.5 sq.mt, in living room 4 sq.mt. Three piece pendant lamp in the middle of living room does not let anybody walk below it for more then 120 cm in height. Bathroom is super tight.
Though we stayed around 3 weeks (2 adults and 2 kids), host reserved us only two small shelves (1 ft by 2.5 ft each) to place our items. When we expressed this is not enough, she blessed one more shelf and 4 hanger space from her wardrobe.
Hot water in shower does not last more than 10-15 mins. No two person get a shower immediately one after each other.
Check in was late though we communicated about arrival time. She advised us to walk around and have a coffee while she was cleaning apt. Internet was off. She called tech support after we suggest. We spent first day without wifi and spent second day at home waiting for onsite support visit apartment and spend another hour to find broken cables, fix and leave. It was around 4 pm.
Apartment was dirty, no professional cleaning (I don't remember a cleaning fee is charged). Kitchen tap was broken, vacuum was full of dirt and not emptied. You could see host made a 15 mins tide up, not cleaning before check in.
My daughter had an accident because of unstable decorations but host was focused on broken item rather than potentially terrible incident.
Marion was very communicative, responding to messages in timely manner. But this apartment is not more than two adults, never for kids for sanitary and safety reasons.
As summary: by maintenance, lack of sanitation, and useless decoration, this place is not ready for an AirBnb place.