That was a horrible experience. I'm sorry we had to deal with that.
Niko left us the keys in a box, so we could enter the flat without any problem. The flat was a bit dirty though (floors, bathroom). Apart from that everything was fine. But when we came back from the city at night the problems started. He didn't tell us the bed was broken (2 of the planks taped with a plastic tape), so we had to sleep on a smaller bed which was in the room. After texting Niko and telling him what happened to the bed and that we don't like that situation he started to be rude, saying we just want the money back. After I messaged him not to be rude and repairing the bed instead, he didn't answer. He started to roughly insult my boyfriend though, who messaged him that he has to report that situation to airbnb. Niko kept sending him offensive messages and then, suddenly, in the middle of the night he came to our room with 2 friends, behaving very agressive, looking like he wants to fight. My boyfriend tried to calm Niko down, so they left after some time. We left the next day, early in the morning, not knowing what to expect behind the door, leaving the bed broken as it was. Later on, we got the message that we left the room dirty (after 1 night) and the harassing texts started again, so my boyfriend had to block Niko's number. Threatening and insulting is not what you expect when you tell the host that the bed is broken. I don't know what's wrong with Niko, but that behavior was unacceptable. Huge disappointment. I hope noone will have such a bad experience anymore.