Théo's apartment is in a perfect location. Rue Mouffetard is an extremely nice Parisian street with bars, restaurants, flower shops, bakeries... Metro station is very close. If you don't mind walking you can start your walking tour to the Panthéon, Notre Dame etc. from the apartment or rent a bike (Vélib) . The apartment is very light, clean, nicely decorated and you will definitely find all you need. Théo was very nice and communication could not have been better. I highly recommend staying at his apartment.