I booked a room of Robertos for my mum. She was visiting me in Madrid. Roberto moved her to room #3.

Back then the discription did not say that the room has no "real" window. There is a "window", but it is connected to the kitchen and after antoher 3 meter there is a real window. Therefore, the fresh-air circulation is bad and the room lacks of daylight.

Also note: if the window is opened, the room lacks of privacy, because it is directly connected to the kitchen and at Robertos House there are always more people staying.

My mum had to break up her stay after the first night, because she has problems with her lungs, needing a good air circulation. for the sake of her health it was not possible to stay in the room.

These matters were not mentioned in the discription and Roberto knew, that a woman of an older generation would be coming, who probably needs more comfort than the younger generation.
Therefore I would have expected any partial refund as a gesture of goodwill by Roberto. But he did not do so.

Additionally his rooms are overpriced compared to other Rooms in Aribnb (Paying $46 a night before Airbnb fee).

Furthermore Robertos rent is not accepted by the owner of the property. Therefore he wants his guests to lie to the doorman, who guards the entrance of the whole building. You are supposed to tell him, that you are just a friend of Roberto, instead of saying that you are a paying guest by Airbnb.

This is my honest opinion about Room #3 and Roberto.