We loved staying at Marie’s apartment! The location is fantastic— close to several metro lines and a 15-20 minute walk to main sights in Paris (Louvre, Notre Dame, etc). We also enjoyed walking around Le Marais. There will be noise because the apartment faces the main square. However, that means you have a great view from the balcony for coffee in the morning or wine at night. Overall I would highly recommend if you want to be close to the action in Paris!