Sophie's listing was great. Highly recommended for anyone looking at it.
1. Location - Superb and near to 2 key metro lines (5 minutes ~ 8 minutes walk). Safe and quiet area. $9 to $10 euros by uber to most key spots within Paris as we took a few. $45 euros by airport taxi from Orly airport to place and $55 euros by taxi from taxi stand to CDG airport. (Hope this information helps!)
2. Amenities - Wonderful as it is smacked within a few safe streets with easy access to big supermarkets, bakeries, restaurants
3. Building - It is probably a classic french building from before 1900s so you get some insight into the historical space and layout. Interesting to note that the ground floor tenant was a Michelin star restaurant.
4. Apartment - Big and tidy unit that had been recently remodelled with modern details. For a couple, the apartment had sufficient living space, modern equipment and resources to live in, cook and beat the cold weather. Only gripe is the apartment's location on the top floor with no lift access. This was not an issue for us but may be for some guests with mobility or strength constraints. Many Paris apartment complexes have no lift access anyway.
5. Host - 5 stars and more. Sophie was incredible in timely communication, checking in on us during the stay and visited us during checkout. Her detailed recommendations on the surrounding areas were spot on as she was a local resident of the area. I think our stay was more wonderful because of the host's graciousness and warmth towards us. Can't speak highly enough of the host.
Overall, a good stay for 4 nights in an area frequented by locals.