Applied online through the APD (advanced professional degrees - MD, PhD, Masters, etc) channel. Passed the initial resume screen and was invited to the IWIA (Initial Workshop and Initial Assessment). This consisted of a standard assessment test which was a 26 question test based on case studies. Challenging part was the 1 hour time constraint. (Test is similar to the online sample on McK's website). The second part was two group breakout sessions (3 candidates/1 McK consultant) that's meant to give an idea of how case study interviews work. Was repeated told that the outcome of the first round interview was SOLELY based on the assessment test, but opinions differ. The second round was held at my local office. Consisted of three 1-on-1 interviews. Each interview consisted of initial chatting, a personal experience type question (e.g. name a time in your career that you were a leader and had to resolve conflict within your group, etc) and a case interview (standard consulting cases). Prior to the second round, we were asked to give preferences for our final office. Supposedly, there is a standard bar across all of McK, which if passed, you're advanced to the final round (regardless of office preferences). Once you get thru to the final round, your office preferences and the office's needs are matched up. I got my first preference, the Chicago office. Similar to the 2nd round with three 1-on-1 interviews, but the only difference would be these interviews tend to be more senior members/partners in the office. That being said, the case interviews in the 2nd round were more formatted (interviewers have cases in front that they reference). The 3rd round partners tend to be more off the cuff, formulating their own case information as they go and they want to see you think on your feet. Overall, I agree with previous posters that McK makes you feel like part of the team even during the interview process. In between each round, they offer plenty of support/feedback, opportunity to meet other consultants, etc. They sincerely appear to want you to succeed. They pick up the bill for travel/lodging and you get a glimpse of the glitz/glam of working for a company with their reputation. A key part of this process appears to be your ability to interact with interviewers and have a solid approach with case interviews so live practicing with friends, consulting clubs, etc., would be helpful.