The communication with the guest Olivier was perfect, in spite I was not speaking French and the way to find the keys was good. Everything was well explained in the apartment and nice to have the first breakfast offered. The apartment was as large enough to well stay in 4 and very quite in spite of train passing close and the traffic in the street. Unfortunately the surroundings are rough, feeling of no safety is evident, confirmed by two (unsuccessful) attempt of pickpocketing in spite we were on the alert. Maybe could be common around railway stations in big cities (Gare du Nord is close) but at least not the best for families.