There was an on campus interview with two recruiters, they asked me a case interview question about how many passengers leave JFK airport on any given day, and asked other background questions. For the second round they flew me to DC and had a series of 5 or 6 hour long interviews with all sorts of different firm members, including two pretty strenuous case interviews. In general, I liked everyone I interacted with.

The process took approximately 2 months, and the interviews were similar to those of most management/strategy consulting firms. It included case studies, market sizing, a technical PowerPoint presentation, and behavioral interviews.