I never met Mathieu myself, just the maid responsible for the flat. But he is very responsive via email and whatsup. It is a great small appartment and only a 3 minutes walk away from Chateau-Landon metro station and 5 minutes walk from Gare de L'est. Supermarkets, shops and restaurants very close by. Nice balcony with a small table and view for a great breakfast. My flight to Paris was cancelled and the later one delayed, but Mathieu organised a late key pick-up with the maid. Thanks again for that. Also during checkout, I could do a late checkout so I did not need to store my luggage some else. Very flexible. Had great time and recommend this place a lot. Mathieu is a great host. Thanks again for everything.