The interview was in overall pretty casual, which came as a surprise to me because other Big Fours I interviewed with before had very standard and typical interview questions. Maybe it was the style of the principal. The interviewer basically let me pick questions I wanted to talk about. I just went on talking and constantly confirming his response. I guess the point was that he was expecting something different in our conversation that stood out from run-of-the-mill interviews, which was kind of hard to do since there is barely anything about this interviewer online.