The experience started well, but things changed when the host insisted that I pay for lunch. I explained that nowhere in the experience description was it stated that lunch was mandatory or that I had to pay for it. Instead of accepting this, he became aggressive and insulting.
He told me to “go fuck myself” and “go die,” threatened to leave us in the mountains, and said the chauffeur would not take us back if I did not pay. He also told me I was lucky he was not near me because otherwise he would have beaten me up. When I said I would call the police, he took us back but refused to drop us at our hotel, despite the description stating that pickup and drop-off at the hotel were included.
This behavior was extremely disturbing and threatening. There is no justification for insulting a guest, threatening violence, or refusing the advertised transportation.
There are many similar experiences with respectful and professional hosts, so I recommend choosing another one.