Paul et Marie were great. Communication was great. They really helped us make our first Paris experience a great one.
As for the apartment, it's on the small side but it's a great value. It was fine for us and our daughter. It is about half way between Sacre Coeur and the Louvre. We walked to both Sacre Coeur and the Louvre but also just used Uber get around everywhere else, including Versailles and the Eiffel Tower.