The stay was okay, the apartment is clean and well-organized, but we were surprised on the check in. The owner asked for our ID cards/passports and took a photo of them even we were not agreed with it. According to GDPR it is strongly forbidden to ask someone for such documents and to take a photo. Also, we were asked to sign a contract on the spot. It is not written anywhere that we have to sign a contract or to provide our ID documents.
We are using often airbnb and have never been asked for such things.