Sophie wasn't there on our arrival but her friend was and and thoroughly explained how the apartment worked. The flat was positioned in a fantastic location with a fast access from the airport (via the B train to Gare Du Nord and the metro 5 to Republique). We were left some cheese and biscuits for our stay and the general feel was so Parisian it couldn't have been more authentic. Highly recommended and somewhere I'll be returning to when I can!