My three teenage children and I stayed for a long weekend in Laurent's studio. The location is wonderful on the edge of Le Marais and 10 min walk from Bastille. We were met by Miguel as agreed and he took the time to get an engineer in to fix the wifi that was not working. It was very pleasant, quick and painless.
The flat is very stylish though a bit small for 4. Clean, light, comfortable beds and sheets and all works well. My only reflection is that since this apartment is managed by an agency, there are pros and cons. The pro is I guess that it's not a lived in home so it's impersonal which can feel easier than living among people's things if there is a lot of them.
However, there is nothing over and above the flat, bed linen, towels, and the amenities mentioned. Salt and pepper stand on a shelf but everything else needs to be purchased as an extra package: toiletries etc. There isn't even a sponge to wipe the table.
There is I guess no reason for these extras to be included and the price is still competitive In terms of staying in a hotel. But I have stayed in many air bnb homes where I felt welcomed by little extra touches. At the very least you get hand soap.