I went through a grueling 6 round interview (totaling 6 hrs.). One interview one day and the 2nd day 5 interviews back to back with multiple interviewers during each single round. After the 2nd round, I contemplated just giving up because of the way I felt physically ill and uncomfortable during the process. I've been on multiple interviews during the span of my 15 year career, and have never experienced anything like what I experienced with Amazon. It was the most grueling and humiliating thing I've ever experienced.