Location, location, location! I loved the neighborhood there. The beautiful Jardin des Plantes, a lovely quiet and beautiful garden, the proximity to the Seine river. This is the Paris I love!
On our host: she was wonderful. Her instructions were extremely clear, it was really easy to feel immediately at home. The place was about what I expected, as the reviews were very positive. You will also get a lot of nice tips about what to do in Paris, from restaurants to museums and shows.
I am very pleased and will try to book her apartment again.