I had a first round interview on campus consisting of two 2:1 interviews with alumni and senior level analysts. The first round had a small case interview - nothing too difficult but requires you to think out your rationale - and a general fit interview. The second round was help at the office - I had around 14 interviews all day excluding a lunch out with other analysts! But it was all behavioral and to see if you fit into their culture, so I don't think it was too terrible.

I started with 1 fit interview, followed by a case then a behavioral interview. The last step was fairly casual and straightforward. Everyone was friendly and professional about time. I heard back in less than 2 weeks about my final offer.