I had 2 phone interviews: started out with HR, then an associate at the firm. They were both relatively easy. Then I had two in person interviews: the first was with two senior associates at the firm and involved a quick case study(really easy). The second was a case presentation that you have a week to prepare for. My feedback was simply to have researched more. After the process, I had a quick call with HR(about 10 days after the final interview) to tell me that I did not get the role because of a lack of relevant experience.