I went through a two-stage interview process. The first stage had a culture fit chat followed by a case (45 minutes each). The second stage had a case (1.5 hours) and a presentation of an interview (45 minutes) that I was asked to prepare in advance on a subject of my choosing. The cases were both interesting and were the most enjoyable part of the process for me. The length of presentation required felt high and the guidance given was (I suspect deliberately) low, which made completing this a significant strain on my existing work and personal commitments. I received an offer for a level below the one I applied for, which was disappointing on both a personal and a practical level. The offer represented only marginal increase in compensation on my current position, and so ultimately I ended up declining.