Pierre's place was a wonderful find in a great area in Paris. Close to all the attractions, literally steps from Pantheon, and a stone's throw from Notre Dame and Siene. Also, so many great food options right outside the door (and in the neighborhood). Pierre and his friends are great at communication. They gave us a tour of the apartment when we arrived and made us feel at home (although that was the only time that we saw them in person).
The apartment itself is a historical statement and definitely a unique experience by itself. Totally recommend.
Just take note that there's no elevators and you have to climb 5 floors to get there, so it may be something you want to be prepared for especially if you have heavy luggage. Well worth it to have a cozy alcove under a rooftop with a large private balcony that has great views, the apartment has some seriously romantic vibes. 10/10