My first interviewer was late, bored, and told me that he was looking for people with a lot of experience to join the team. I have 3 years of experience and the hiring manager is looking for people with "9-11, ideally." There was a huge gap between what I have and what they are looking for and at that point, I had no idea why I was invited on site. At the end of the first interview (which was with the hiring manager), he told me I would be cut off if the first few interviewers decided it isn't going well. From that point, it was clear to me I would be cut off. Two interviews later, I was cut off because they are "looking for someone with more experience" and "the team doesn't have enough time to train someone right now."
I'm insulted that I was invited on site and then rejected for a lack of experience which my resume clearly reflects. It was a waste of my time and disrespectful on Airbnb's part to treat a candidate this way. I also felt I was boring the hiring manager before I even opened my mouth, as he was about ten minutes late and spoke about his passion for Airbnb with such apathy that I almost wanted to laugh. I left Airbnb with an awful impression of the company and the recruiting team.
One last note: one of the interviews spoke about how difficult the interviews can be for engineers, specifically the "values" part where they are basically testing your passion for Airbnb. He talked about how many engineers fail that question, especially foreign candidates, who don't show passion in the "right" way even when they succeed technically in the interviews and are otherwise nice and pleasant people. Company culture is important, but Airbnb's culture does not seem to be one that cares about hiring the best, but rather those who look and sound like themselves.
Overall, I came away with an awful impression of Airbnb and its company culture.