This is the smallest apartment I have ever stayed in in my life. Tiny room and bathroom. But OK, as it's located on a pedestrian street in the heart of Paris' 11th arrondissement.
The biggest problem was another. The sofa bed was old and so was the mattress. In addition to the physical discomfort to sleep, the situation gave me a lot of allergies.
I had to find another apartment, which cost me a lot. And I had a bad experience with the owner, who insisted on asking details of my allergy to try to say that the problem was mine, not the apartment.
Bad experience.