If you are traveling with a larger group or just prefer some extra space in general this is a really good option. We had 7 people stay and it was very comfortable although I wouldn't stay here with more than 10. The location is phenomenal and is walking distance from most of the major attractions in Paris. Communication was also great with quick and helpful responses.
There is no flexibility with check-in or check-out times so be prepared to store your luggage elsewhere if necessary. All in all we had a good experience staying here.