Katy and Vincent are terrific hosts. They were readily available to answer questions both in person and through AirBnB. The apartment is in a wonderful location, nicely apart from heavily touristed areas but within a 5-12 minute walk to several Metro stations. Four of us shared the apartment (2 adults+2 kids), and we had plenty of room. If you are planning on staying, leave yourself about 1/2 hour or so to get from the apartment to, say, the area around Notre Dame or the Left Bank.