The apartment is perfect. Michel is a great host! Very nice decoration. Very quiet; no outside noise but at the same time close to all nightlife and excitement of the Bastille area - many restaurants and bars.
Metro stations Bastille and Ledru-Rollin are at a very short walking distance. In fact if you like walking you can walk to the Notre Dame and from there to the Louvre, Tulleries, Champs-Élysées up to the Triumph Arch. To me walking is the best way to see Paris.
There is also a market close to the apartment, the Marché d'Aligre where you can buy all sorts of cheeses. Boulangeries with delicious breads and many wine shops build the perfect trio wine-bread-cheese. Small pleasures of live...