Marc was very helpful and flexible in terms of checkin although I booked only one day in advance. He is a very nice guy and gave me some tips for my day in Paris. I got very detailed directions about how to get to the apartment. There is also a concierge service which was helpful to store my luggage while a was walking around Paris in order to do some sightseeing.
The room had all i needed for one night and the price was unbeatable.