Nathalie's space is an amazing, hidden gem. Tucked in a very private courtyard in the Latin Quarter, it provides peace and quiet while being so close to everything Paris has to offer, only a stone's throw from Notre Dame. My favorite part of the place was the basement, even though we never used it. It's a cool thing to have a cave for a basement. You can also block out 100% of all light, making it way too easy to sleep in after a long night of great food, wine, and Ricard.
Nathalie is also an extremely accommodating host. She provides everything you might need for your time in Paris. When I'm back in Paris, this will aways be my first choice for accommodation.