Staying with Christophe and his family were amazing! The whole family is so sweet and very accommodating. You don't get a key when you come, because you stay in the families home so for safety reasons it's probably smartest for them not to give out keys to their house. But not having a key turned out to be no problem, because Christophe or his wife would always stay up to let us in without complaint! They also not only provided, but made breakfast for us which was incredibly kind of them! The location of the hostel is also amazing! There are many good options nearby, it's close to the metro station, and walking distance from an amazing view of the Eiffel Tower! I highly recommend staying with them!