I don't know what kind of people they usually host, but the measures taken by the host are simply unacceptable.
It's yet another company renting on Airbnb, which is fine.. check-in was a bit of a mess, fine too, but being greeted by three different a4 full pages with condescending language on both sides of the entrance door is a first time for me. I will enclose below some of that language..
They didn't stop there and decided they can commit a violation of your privacy.. they had welded the key socket shut on the inside so you can't lock it after you've made it in to the apartment. I can maybe guess they did that so guests won't lock themselves in past checkout.. whatever is the reason this is simply criminal, a violation of privacy. Will you pay for a place knowing you can't sleep safely there with the door locked? no..
Barley slept knowing the door wasn't locked, and never want to be treated and subjected to this kind of greeting ever..
"IF THE APARTMENTS RULES ARE BROKEN THE RESERVATIONS ENDS IMMEDIATELY
AND WITHOUT WARNING OR REFUND, POLICE WILL BE NOTIFIED, YOU
WILL BE FINED AND KICKED OUT OF THE APARTMENT!"
"The apartment is NOT A CAFE! Extra people that are not on the reservation are NEVER allowed in (even if you've rented the entire unit). Also not for a 'short visit' or to 'quickly use the toilet. There are hidden cameras in the hallways and outside the building that constantly monitored"