I applied using their online system which was just a cv upload. I received a response within a week confirming they were interested in inviting me to London for a 2 hour interview, and they wanted to know my availability. I provided dates, but they must have had too many responses as the dates I provided came and went so then it was the end of February before I had a date booked (I applied in the first week of Jan). The interview was really straight-forward, the people seemed friendly and enjoyed working there. It was not challenging - there were no programming questions or difficult scenarios, it was more about finding out what I knew about the business and felt about consulting in general. I did a presentation based on my third year project, which went really well and they asked loads of questions about that. I felt confident about the interview, they told me I'd hear within the week but it was more like two weeks before I had confirmation.

Medium level leetcode style question during the OA. Your solution then had to be explained during the interview. All round a bit unprofessional. Took 2 weeks to receive the offer.