We stayed for three nights at Christophe's place. The apartment is in a convenient location if you arrive by train at Gare du Nord (20min walk) and it is really easy to walk around Montmartre. We were travelling with a baby; there was enough space in the bedroom for our travel cot which we bought with us. The bedroom is facing a quiet courtyard and the living room is spacious for two people. There was also a small kitchen which had all the essentials. Communication and check-in were straightforward. We really enjoyed our stay.