Pauline is really a lovely host and responds very quickly to any questions or needs.
The location of the apartment is super cool to explore the city since there's a metro station close-by, but you can also reach a lot of great and famous areas by foot. Personally I walked around all the time since I didn't just wanna get from A to B but rather I wanted to get a feel for the city. The splendid park called Jardin du Luxembourg for instance is just 25 minutes away by foot so you can stroll there and enjoy the peaceful surrounding. Besides, a lot of supermarkets and restaurants are close-by so there's nothing more you could wish for.
Overall, the area seems super calm and peaceful and I always felt more than safe, even when I was walking home after midnight by myself.
5 out of 5 stars. I totally would recommend. Have fun and enjoy your stay in Paris!