I love this kind of old parisian apartments. The backside was that the old door lock needed a proper renovation and there was a lot of noise. The lock seemed warned out and made it difficult to get out of the room. Jiddu was not home but his brother was kind and did his best to help with instructions about the lock.
The room is quite noisy. Partly because of the road traffic on cobbled stones one floor down and that a lot of doors were slamming during the night. Maybe the traffic noise comes with a crowded city but the sound of doors slamming (or maybe the main gate?) was new to me.
I was also unlucky that there was someone in the building hearing loud music until 5 in the morning. All in all I only got around 4 hours sleep.
So if you are used to city noises (or sleeping with earplugs) and don't mind the defects of an old house then I can recommend the place.