I'm an American that came into town for work. Because of that, I mainly chose this place for its size and location (a block away from The Westin Vendome - where I was working). It's also a fantastic location because it is across the street from the Tuileries Garden, which leads to the Louvre on one end and the Musee de L'Orangerie on the other. Plenty of fancy and cheap food in the are too. Check-in was easy, but the host prefers an exact time of when you'll meet them for the key. Unfortunately, they only provide one key and there's a very tight 1-2 person elevator that can take you up 5 levels - you'll have to climb the last flight of stairs to get to the room on the 6th floor. There was more than two of us staying, so I had to take all 6 flights of winding stairs every time, which was definitely killer.
The space itself has nice, lived-in vibes and is very open with a lot of the family's personal items throughout. It was pretty dusty throughout as well. There are lofts in two of the rooms that have extra beds (I think 5 beds total). It wasn't super hot while we stayed, but I appreciate that the host left plenty of fans for us and opening up the windows helped when things were particularly muggy.
If not doing a hotel, I would likely stay here again. It doesn't have the typical Parisian apartment vibes, but the centralized location is hard to beat!