First round consisted of one on one interview, In house consisted of 3 one on one interviews, a group/team building exercise with the other candidates, and a meal with a first or second year associate to finish up.
Interviews consisted of a lot of behavior questions focusing on teams, dealing with conflicts, leadership skills, etc. With regard to the group exercise, they give the team a collective problem to solve and observe the team/individuals as they work towards a solution.
Relative to other Big 4 a lot more interaction and they try to present their firm as a more "fun" oriented company.