Sylvie was friendly and considerate - not only that she let me checked in early due to my extremely early train, but also welcomed me with tea and croissants. Her place was very central - two metro stops nearby, 30 mins' walk from Gare du Nord, and good bakeries and large supermarket are nearby. She was also very kind to help me improve my French. I will definitely book to stay with her again if I come to Paris again. Merci beaucoup Sylvie!