Let's start by saying the design of the place is really really nice. The window ceiling to gaze into the night sky is a real plus. The space is really big for Paris standard and everything is quite well designed.
OK the bad side, climbing 5 level of stairs isn't the easiest but for sure it test my endurance. The other negative side is the bed is tucked so it becomes quite small specially if you are 2 sleeping on it.
Beside that the location is great as its minutes away from Les Halles and few steps away to everything we want to visit.