Definitely nerve-racking before it started due to the prestige of the company. My interviewers were Managing Directors and Executives and they were very personable, patient and genuinely curious to know who I am and my interest in the company. They shared a lot of detail when I asked them questions and it felt like a really good experience during and after the interview. The hireview before real-person interview may feel strange because you're talking to your camera but its worth being just as professional and prepared as you would be for an interview with a human because they watch every single one, no AI is used.