This host has to improve on sanitation issues. Problem zone 1 was the kitchen, with not a single glass which didn’t need a re-washing before you would want to use it, similar situation with the plates (sticky on the outside) and the cutlery. You wouldn’t want to step bare-footed on the kitchen floor, too. With that in mind, we were never sure how reliably clean the bathroom was (problem zone 2), and what we should think about the stains on towel and pillow linen (problem zone 3). Other criteria about the flat were they are described and should be.