I stayed in Anne-Laure's for five days and four nights, in December.
The staircase leading to the flat was really narrow and dingy, and the steps were old and slippery. Be careful when you climb those three floors with your suitcases (as there's no elevator). The paint of the walls of the staircase was falling out and there were humidity stains everywhere.
Regarding the cleanliness of the flat, it haven't been dusted in a really long time. The floor, the shelves, the table, the space between the bed and the wall, etc. were covered with dust and hair. The kitchen counters were oliy and dusty, I had to whipe everything thoroughly in order to use it safely. The same happened with pans, dishes, cutlery and glasses, everything had to be properly washed before used. But what shocked me the most about the kitchen was that it was FULL of expired food. I guess that's what the ad means by "breakfast included". There were even packages of food already opened in the fridge. We had to make room for our own food, because of course we didn't want to eat anything from there.
As for the bed, it was not a bed. It was more like a mattress you would find in a gym for doing pirouettes. It was incredibly hard and impossible to sleep in. I wasn't able to sleep properly any of the nights I stayed there and every morning I woke up with back ache.
It's a tiny flat, which I was aware of and I didn't mind, but there was absolutely no space for me to leave my things because everything was filled with the hostess belongings. In the bathroom, same thing happened. Loads of shelves but filled with her stuff.
If you go there, which I don't recommend, I'd advise you to take photos of everything that's not working properly or it's broken, because the hostess will try to charge you for things that were already broken when you got there. I hope it doesn't happen to you, because it's infuriating to be asked for money when the flat wasn't even in a good condition.