Mari is a wonderful host and her apartment is centrally located in the heart of Paris. By foot you are just minutes away from public transport, tons of bars/cafes/restaurants, La Seine, Musée d'Orsay, La Louvre - it's perfect. Mari will even prepare breakfast for you in the morning and make you feel right at home. She has a great list of recommendations of local places to eat and sights to see. I would definitely stay with Mari again while in Paris.