The host responds very quickly and gives an accurate description of facilities and the area. Checkin and check out was communicated and no delays in handing over keys. If you are a healthy person, the apartment on the 4th floor is not an issue at all - my kids did not have any complaints too. Pauline's brother very kindly carried our luggage up the first day and explained everything - very very helpful ! The apartment is small but cute , clean and has enough cutlery/bowls etc for a family to cook meals. Pauline & Lucas provided toilet paper, sugar and tea which was very helpful esp on the first day. The bed is neat and tidy. There was a vaccum cleaner, fan , washing machine + soap - all essentials for a family with kids were present. The metro and bus station are right outside the door. There are stores selling Indian groceries, a Monop selling fresh veg/fruit/groceries/baked stuff and a nice Bakery just a few minutes away. Indian restaurants are a 10 min walk. Italian dining place just outside the flat. Eurostar station 15 minute walk - you basically do not need a taxi to reach any station or store which is great !
PS : Only suggestion to guests visiting Paris is to be careful of belongings while using the metro or the bus - keep your pockets empty and wear your backpack in the front.