Staying at Peer's place gave us that specific feeling when your friend is not in town and let you his keys. You struggle to access the keys, things aren't tidy, you lack sheets, you lack towels, the shower is above toilets and with a broken showerhead, used socks on the floor. So much things it became funny.
The unfunny part is you still have to pay that friend (I'll admit it's cheap for Copenhagen and I'd probably choose this place again to save cash). But the worst part was to receive a message the week before asking to double the price for our dog, mentioned on the booking. Hopefully, we found a better agreement.
That was the most unprofessional Airbnb of my life, but it isn't supposed to be professional, fair enough.