Their apartment is lovely, spacious and light. It is well-located close to Muette metro station and some chic stores and good cafes and restaurants. 3-person lift will get you up to the apartment on top floor.
The drawbacks are that it can be noisy (street hustle and bustle and traffic noise down below) esp. if you have the door to balcony ajar when hot, & some kitchen amenities could be in a better state or at least supplied.