Our stay at Kays place was really good. The communication was excellent, Kay always replied immediately. The flat itself is cosy, there is everything you need and even the couch was comfortable, so staying with 4 people is no problem at all. Kay organised our checkin, even though she was not there to let us in. The place is close to Gare du Nord by metro. All in all we had a good time and I can recommend the place.