The location of the house is just perfect, you have quick access to various public transportations and in quick time you will be able to reach Eiffel Tower, Sacre Coeur, Notre Dame, and many other places. The neighbourhood seemed to be very quiet and safe, we didn't have any problems, even when coming back at late hours. The apartment is small but enough for two people, and has almost all of the basic needs to spend a few nights in the city. The water was hot and nice and there is an heater that helps on the cold nights. The checkin was very efficient and smooth, without any problems. John was also very communicative and fast to answer any questions, even suggesting some helpful services!
However, I would just leave some suggestions to improve the quality of the stay. First, it would be nice to have some basic cooking essentials, since buying salt, pepper, olive oil, etc, for a quick stay turns into kind of a waste. There should be more towels on the apartment, having only 2 small towels to dry your hands, dry your hair and body is just not enough. Also, there should be some cloth or towel on the kitchen side to dry plates and dry hands after cleaning everything. There were also some other details that we couldn't pass by like: missing outer protective sockets plates, missing cabinet doors and an almost broken shelf on the side of the bed, that was so incline that some stuff would just roll off.