Catherine's apartment was perfect for our long weekend in Paris, and we could have stayed longer! The location is amazing, the apartment is comfortable and Catherine is incredibly responsive and easy to communicate with. Check-in was very easy as Catherine provides really clear instructions.
Regarding the space itself, we found it very comfortable for 4 people but as shown in some of the photos, one of the loft beds doesn't have any curtains so it's not very private. This wasn't a problem for our group but good to be aware of it.
There was ample space in the common area and an overall clever use of space in this stylish apartment. Would definitely stay again!
(One other thing to be aware of if you are hoping to store luggage in the nearby storage facility at 82 rue des Gravilliers: it needs to be booked online in advance or may be full on the date you want to use it)