I didn't get a chance to meet Laurence or Giuliano at the beginning (met Giuliano later, very friendly!!) but their friend Melena met us and she was super helpful when we got lost on the train and was there to show us around the whole place and teach us how to use the many locks to enter the apartment (extra safe).
The apt is exactly as described. It was a little doll house and couldn't have been more perfect for my boyfriend and I.
Staying in Montmartre was the best decision ever. I knew nothing about it, but it was perfect. It's so much quieter than the other areas and felt so nice to come back to after a full day. Tons of cute shops.