Completely standardized. 1) computer business math test 2) two round 1 interviews 3) two final round interviews. Feedback/decisions get quicker and quicker as you go further in the process. Consensus-driven approach. As usual, case interviews split equally between fit and case. Fit is some initial ice breaking, and the chance to discuss a couple of interesting experiences, along with your motivation for the job. Plenty of information is out there on cases. There is definitely such a thing as a BCG idiosyncrasy, but you need to master the general approach to cases first. They're hard, and you're bound to make a minor mistake or two, but you'll know in your gut if you're handling them well or not. In summary, a fair but very challenging process; if you "get" their way of thinking, it'll get you through. Received offer and accepted.