The first step consisted of an online numerical reasoning and data interpretation tests. These were harder than average. The video interview consisted of four questions which were relatively easy and didn't require much preparation. The morning of the assessment day involved three tasks. The first consisted of getting to know the person next to you and introducing them to the group. The second was a repeat on paper of the tests done online. The third was a "case study" where you had to use a technique learned in a quick video to answer some questions.
I would say that the tests are the most difficult as they are extremely time-pressured. The case study was relatively easier than doing a standard consulting case study where you are required to think out loud in front of an assessor. In this case, your answers are written down on a sheet. 10 out of 13 of us were rejected at lunchtime.
I found the morning of the assessment day very impersonal. You did not have an opportunity to talk to the consultants one-on-one, and most communication was through the HR representative that was running the assessment day. Compared to other assessment days I would say it's very maths focused. I found it quite frustrating that the assessment was based on the same tests as online as I didn't feel like I had performed very well on them the first time around. If my test results were too low, I would have rather known before making the effort to go to the assessment day.