The first round is just a case you have to solve with the interviewer. The second round is Power Day with another case, a written case, and a behavioral interview. They say math is not a big factor but it is. Make sure you are comfortable with big numbers and know how to do calculations.

3 rounds of casing interviews. Very math heavy and quantitative. Cases got more complicated with each level and longer than average interviews. 1 hour for each. Very little behavioural focus