The apartment is perfect for 1-2 people to enjoy Paris, and the location in Le Marais is great - so easy to walk everywhere. It had all of the amenities needed on a quiet street, but a few minutes’ walk to many shops, bakeries, etc.
However, I did have an issue with check-in. My train was two hours late due to construction/staffing issues. I alerted the host as soon as I had a new arrival time given the cleaning lady was scheduled to meet me. He got upset and implied that I was lying about the delay and was on a new train altogether. After proving I wasn’t by sharing the train status update, he at first seemed like he could not accommodate me. Finally he said he could pay his cleaning lady to stay longer, but that I should also tip her if I can. When I arrived, the cleaning lady would not leave until I paid her, saying her boss had told her I would. I didn’t have any euros yet and she was annoyed and disgusted, and only after I gave her $30 USD would she leave. I found this behavior extremely inappropriate.
Again, the apartment is lovely, but be warned if you have the slighted change in travel plans that are out of your control, Quentin can be hard to work with.