It was very long, corporate (as expected), and difficult. A huge time investment (12+ hours) to receive zero feedback. That was 'company policy'. I think the process is designed to find people who suit that corporate environment, but I found that wasn't for me!

6 back to back interviews with various team members who wrote down every single word I said. Did not engage with me beyond stiff questions. Following the interviews, the recruiter sent an auto mail said I was not selected and did not respond when I asked for feedback.

It was not a pleasant experience. Some interviewers were extremely jaded or going by the books so much they forgot to be human. The star method is quite painful to apply and some interviewers really go by it step by step. There is no way you can be yourself. I would recommend building a completely new personality that would match with the star method so you can hope to please the interviewers