Katia is an excellent person and an even better host¡ She toke the time to help me while I was organizing my trip. It was my first time in Paris and definitely Katia and his son Mathieu help and disposition was something that i would always be thanks for. She has the courtesy to leave some snacks for me.
In terms of the Studio, just wonderful, It is even better than what you get to see thought the pictures, it is comfortable and definitely has everything you get to need during your time there. It is really new and in perfect conditions.
The neighborhood is perfect, excellent streets, near to metro an bus stops, really close to Trocadero and Tour Eiffel. It is extremely safe, day and night, and you can access to stores, bakeries and restaurants in walking distance. It is and incredible and typical french space.
I would definitely want to go there again and stay at Katia´s place. 100% recomendable, if you want to stay at an excellent place in that great city, go to Katia´s.