Marie was incredibly helpful and pleasant! If I had happened to, say, not been able to figure out how to move the key to get out of the apartment on the first night (in theory...), she replied quickly and helpfully to my only-slightly-panicked message. Her apartment is lovely and it really does give you more privacy than you'd expect, and it's so central that I walked to everything but the Catacombs. I would definitely recommend Marie's apartment to friends and family!