It was mostly case interview, where they gave a case and wanted you to solve it under 20 mins as a group, and they were monitoring the whole group work.
HR interview + case study + 4 interviews with managers and partner. Overall pretty standard, be prepared on the case study section of it. Interviewers are all very friendly. Pretty fast process, as it takes 2 weeks / 3 weeks.
The interview lasted 1 hour. it covered largely competency questions, as well as a few motivational questions for the company and the particular team I applied for. There was time to ask the interviewer questions too.