Well I think I have no problem to tell the truth which should be told in the first place. On the first day the guests arrived they already caused me many problems with their loud rude music with neighbours, I had to go to neighbours to say sorry.
After that the guest asked me to be postman, receiving and bringing their packages, which I later in the end of their journey figured out what their packages are, marijuana! Back then I didn't know what the packages were. I brought them (many pieces) after messaging and ringing the bell many times at the appointment which the guest asked to bring his many "post packages" because he was supposed to be in the apartment. The guest was not there as planed, I have to drop the packages on the floor then. That's how I entered into the apartment with the guests' pre-permission because of the packages. But, what I saw was unbelievable. Such a big mess in there which I never saw with other guests before. Even the balcony door was left entirely opened. I closed the balcony door and I texted the guest that I was not satisfied and asked them to treat my apartment as a "home" not as a "hotel". So this was the first entering.
On the check-out day, again as written agreed, the guests should leave at 11:00am because the cleaning was already planned. I was their ringing the bell at 12:10pm, nobody answered, I assumed the apartment was empty and entered. on the floor I ran into the guest while he was still high. I asked them to leave within half an hour and I came back in one hour they were still there. It was a very disappointing experience.