Location Location Location!
Downstairs is a great Bakery, Grocery, and several restaurants- Japanese restaurant on Rue Borgogne a few hundred yards from the apartment was very good(get the chefs special Ebi Tempura Roll). A few blocks away off Rue Grenelle is Rue Cler which is restaurant Row - lots of options. 10-15 minute walk.
The place is small and on the 4th floor, essentially an attic & you will bonk your head, everyone, but especially over 6’.
Better for a couple without kids.
The location makes up for the deficiencies. Walk to everything Louvre, Eiffel Tower, Champs-Elysées, parks & the Seine.
Nicolas the owner was very helpful- lives next door.