The process took 4 weeks. I interviewed at McKinsey & Company (Washington, DC) in Sep 2011
Interview
So, if you're reading this, you're probably somewhat familiar with the process for management consulting interviews. Having interviewed with all of the top five firms - McKinsey, BCG, Bain, Monitor, and Oliver Wyman - I have to say that my McKinsey interview was one of the worst. The first case was a private equity case, and the interviewer was playing "bad cop." Essentially, most things that you learn about being "client friendly" while interviewing and breaking down information for your client so that it's easily followable could have been thrown out of the window for this one. The guy really rushed me along and could have cared less about the process. It was actually just unpleasant. On the other hand, BCG and Bain folk were great in the process. If you have an alternative option, I would not recommend interviewing with McKinsey.
Interview questions [1]
Question 1
Determine the profit margins for this company for each year of the next three years (assuming constant annual growth).
I interviewed at McKinsey & Company (San Francisco, CA)
Interview
Interview was a straightforward case study, and a McKinsey-specific Personal Experience Interview. This was difficult but I was able to prepare, so it was not too challenging after preparation. The team was very kind throughout the process and I was able to request information on the interview style ahead of time.
Interview questions [1]
Question 1
Tell me about a challenge and how you overcame it?
Passed the online test and then had a round 1 interview. I got a rejection call shortly after. Interviews were a mix of behavioral and technical. Difficulty depends on difficulty of case.
I interviewed at McKinsey & Company (New York, NY)
Interview
Positive experience until the super day. The scheduling was quite long and they gave me a month's gap between my previous round and my final round. But overall everyone speaks eloquently and thinks logically. My interactions with senior partners are also very positive; they ask insightful, probing questions and were encouraging throughout the interview. I thought I smashed it, but one of the partners called me the other day and rejected me.