The entire process was very smooth and took about 2 weeks (not including waiting for the first interview). My first interview round was with a SAC and a Consultant at their office, and both interviews went well (except that the numbers on one case tripped me up). These interviews were both profit cases and were not especially difficult. For the final round, I was flown out to Boston to interview with a Partner and Senior Manager. I had to do a market sizing case which also felt like a pressure test, because my interviewer questioned my every assumption. I had a profit case with the Senior Manager which required a rather unexpected recommendation. The Partner who interviewed me called me the next morning to let me know that I received the offer. In general, the process was great and you have the opportunity to receive detailed feedback at each round. In fact, I was surprised at the quality of the feedback given that the interviewers are so busy! So if you get the opportunity to interview, definitely request for feedback and it will help you to do well in future case interviews.