We loved staying at fabrice's apartment. The view to the sacre coeur was definitely worth the clumb up the stairs. The apartment was really light and spacious too. We didn't meet fabrice as he was away but the xommunication was great and his mum was very helpful explaining everything when we arrived.
Loved the location too- 15 min walk from eurostar and close to all the montmatre restaurants - whilst still quiet and peaceful inside. Would definitely stay here again.