It was by far the worst airbnb place that I have ever been. I spent there 11 days which were awful since the first day, where the kitchen smelt like a sewer. The sink was totally clogged. I tried to unclog it by myself and cleaned a bit the sink, but I couldn't manage to unclog it. I asked from Robert to do so, which he did and I asked him also to clean a bit the bathrooms. Especially the big one, had all sort of dirt on the toilet seat and seat cover. He cleaned the big dirt and managed to unclogged the sink, but the place would not be considered as enhanced clean, something that was indicated in the listing. There was dirt and dust on the floor in the place surrounding the toilet seat and on the bathroom floor, and the kitchen was oily and greasy which was giving you a sticky feeling after touching any surface. My feet were sticking in some of the places, while I was walking. I tried to cook as less as possible there and spent most of my time eating salads or sandwiches in my room, where thankfully there is a small fridge. So, I eliminated as much as possible me going outside of my room. My room was in considerably good condition but everything else was really unclean. I stayed there, as I payed upfront, trusting whatever was shown in the photos and the enhanced clean indication which was very misleading . Due to the pandemic, the cleaning issue should be considered with even more gravity than before. The enhanced clean means a highly clean and sanitized place and it was one of the reasons why I chose this place. However, the reality disappointed me and ruined my stay there. I stayed for 11 days, even though I had reserved 15 days. It was unbearable to stay any longer. I was in contact for 5 days with airbnb's customer service, trying to explain to them the situation and that for my host the place was considered clean. Only after providing photos to them, the cleanliness violation was confirmed and the host had been internally flagged for this. Unfortunately, as I did not report the issue to the airbnb within my first 24 hours there, I could not be refunded (which I found out only then, that this is the official policy for such situations). Robert refused to refund me for the unspent nights. Things went worse, when my 6th day there, he asked for my personal data, such as passport number, date of birth and permanent residence. I had been in other airbnbs in the Czech republic and I was never asked to provide this information. After a couple of conversations with him, he tried to explain to me that this is the legal thing to do when you are in the czech Republic, even for those that come for a few days. However, as he asked me, almost a week after my first day and as I was not aware of this legal obligation, I found suspicious this behaviour. I contacted airbnb where they informed me that if my host had not this requirement in his listing and had never communicated this to me before the check in, I should not provide the info if I didn't want to. I hope that what happened to me, will not be repeated to anyone else, and hopefully this host, will understand that a clean place should be provided.