The single worst stay I have ever had with airBnB.
The place was a health hazard and the host trespassed, penetrating the premises after I had explicitly asked him not to. I strongly warn anyone considering this place against it, it is utterly unsafe.
I arrived in a home filled with a strong smell of chemical products and mold. Upon checking, there was mold in several places and a room (downstairs) completely unusable due to the presence of black mold and a whole in the wall which led directly outside. The mold caused allergic reactions.
There were mice (I saw some of them with my own eyes, scurrying away into the whole in the flooring. Despite keeping the kitchen clean and free from any accessible food, I found their faeces on the counter, near the microwave and on the gas stove every morning.
The host arrived unannounced on a Saturday morning and spent the whole weekend doing works outside the house with two handymen. I was never asked whether this was ok with me nor given the option to refuse them being there. When I refused him to enter the house to move a gas stove he used the moment when I was out to penetrate the premises against my explicit written prohibition against it. I left the place right after I found out he had trespassed.
I am not even mentioning the lack of cleanliness (I found used socks inside a bed, countless cobwebs around the house) or the lack of proper heating. After checking local laws on rental housing, I found out the house was in violation of a number of them, making it unfit for renting.