We did not meet actually, but nevertheless communication was very easy with Mathilde and Matthieu. Everything went perfect. The flat is big and exactly like the photographs show. We felt at home immediately. The neighborhood is very divers: African, Arabian (Iranian culture center), great Cambodian food and a Bio-Café with a mix of interesting people. Metro Goncourt is as close as a Metro can be, the same for the canal.
So we would definitely come back when we visit Paris again. Highly recommended!!!