Interview was broken down into 3 parts. Each part consisted of a 1 hour interview with a consultant of varying level and experience which included a brief introduction, then questions regarding experience and examples highlighting skill sets, finished off with a case study. Also a 1 hour written test was required to be completed in between the interviews. In the end, Mckinsey does a great job in handing out preparatory material to study before going to the interview, but I was surprised how much the consultants run the interviews by the book and follow some guidelines. Very robotic, and little room for any personal creativity. I would expect more from a world class consulting company. I was rejected, which I expected at the end of the interview but I was disapointed with how they communicated the feedback. It was very unprofessional and made in hast. I wasted a whole day of my time to go to the interview, at the very least they can take a few minutes to formulate concrete and constructive feedback. You either fit the mold, answer all the case studies 100% correctly, that means all the math too, or your out. A funny thing too, they mentioned that I did not demonstrate anything about lean management in the interview, but never once did they just simply ask me to give them an example of when I used lean management, or just say please apply lean mangement to solving the case study problem. They are so caught up in following their guidelines like robots, they forgot to be humans. I'm really glad I didn't get an offer and end up being a mckinsey zombie.