Issues began with check in, we had to wait 40 minutes at the waterbus stop for Giancarlo's assistant to meet us. Called Giancarlo to get an ETA, and he accused us of not properly alerting them to our arrival time even though I texted him from the waterbus and had sent a message in the morning with our train schedule. When the assistant arrived, she apologetically told us that she had been checking in guests to another AirBnb - contrary to Giancarlo's posture over the phone. Check in was lacking details and important info -- how to use the shower and how to turn the key in the exterior door to enter the building. This led to more issues. Unfortunately, we had to call Giancarlo because we could not get back into the building. He immediately told us the door was quite simple and then rather offensively suggested that we had broken the key. Later, it became clear that there is a trick to the door that we should have been shown during check in. Each conversation with Giancarlo was extremely tense and uncomfortable. He was impatient, accusatory, and condescending. The apartment was spacious, clean enough, had a lovely water view, and the location was good. It lacked some basic comforts (for example, no products in the shower, nearly empty hand soap, only a single sheet on the bed). Nonetheless, the experience was negative. I was shocked by Giancarlo's rudeness and hostility over the phone as well as his reluctance to try to help us and bullying insistence that whatever was going wrong was our own fault. It was the worst experience with an AirBnB host that either of us have had and negatively impacted our visit to Venice.