We stayed in Matthieus Appertment - which obviously the place he usually lives. It's a typically Parisienne backyard appartment (close housing, no view except towards the next building) in the fifth floor without elevator. If you don't mind about climbing the stairs the appartement is perfect for a couple to spend some days. The kitchen is fully equiped and combined with the living room. The room is bright and with modern (not luxorious) furniture. Shower and toilet are seperated. We have enjoyed ourselves in Matthieus place. And we have had a friendly conversation via Whatsapp about Christo and the L'Arc de Triomphe, the reason we came to Paris this time. Matthieu is very relyable, friendly and - as far as I can say - a super host.