My wife and i stayed at Leo's apartment for our five year wedding anniversary. It was perfectly small, quaint, and comfortable. Centrally located in the Saint Germaine neighborhood, you could easily walk anywhere, the closest of which was the Louvre.
The apartment is a little smaller then the pictures suggest but it's still very cute and comfortable. We slept well every night.
Even though we never met Leo, she was still very accommodating. She even scheduled a car, through Monsieur Fernado, to pick us up and take us right to the apartment where our diver provided us with the keys. Compared to a taxi which cost about €65 to €85, this only cost €50. It was the easiest international traveling experience we've ever had. It was so good we scheduled them to take us back to the airport when we left. When there was traffic due to a car accident, he did everything he could to make sure we made our flight including going into the airport with us to make sure we checked in okay.
Paris is one of our favorite destinations and staying here just added to the experience. We would stay at Leo's again in a heartbeat!