My colleague and I stayed in Marie-Sophie's place for 5 nights and greatly enjoyed the cozy feeling. The place is full of beautiful decor and great little details, and the apartment is full of light. It's a bit on the small side, but perfectly fit our needs - between the bedroom, the bath, the living room and the little kitchen.
The neighborhood is quiet and residential - you'll be a bit far from the main tourist attractions, but you'll get to experience a local neighborhood feel, with plenty of little local shops, including a Boulangerie right in the building.
Marie-Sophie was super helpful with all of our needs - helping out with instructions from the airport, and providing us with an iron and hairdryer which we requested.
I'd highly recommend staying with her!