First round was with a principal and it was purely him assessing whether or not I did my homework and how interested I am in the position and the firm. They emailed me the next day informing me that I will have my second round on campus as well. I was a lot less impressed by the second round interviewer. He seemed quite burnt out and the interview was quite awkward. No chemistry at all. The whole process is very rigid: you have your standard behavioral questions and you ask questions about the position/firm in the end. Nothing too surprising. They still haven't gotten back to me about the third round.