Our stay here was very mixed. The location is unbeatable, the bathroom and bed comfortable (a bit cramped but it worked), and we even had access to a small balcony.
The downside was that I'd specifically chosen a hotel and paid a higher price because I wanted air conditioning (July in Paris 🥵), and the air conditioning in our room didn't work. I talked to the staff 4 times over our 4 day stay - no one called a technician to come check it, they just kept restarting the whole system even tho all the other rooms were working fine. When I stay in a hotel, I expect the staff to have handymen on call to fix stuff like this - in a regular Airbnb stuff happens sometimes, but a hotel should be able to take care of this.
Lastly, while they say they can hold bags for you after checkout, they do not LOCK that door. If you have anything truly valuable with you, they recommend you keep your stuff at the train station a 10-15 minute subway ride away.