It was good interview process I had a referral which is probably why I got a first-round interview. I got rejected after final round (2nd round) interview, not knowing why I got rejected. I thought I did well in the 3 hour interview, but I guess not. It was a great fit for me, so I think you need to have lots of experience and really ace final round interview.

Round 1 is relatively simple: it's a behavioral round with 1-2 people focusing on your interest in the firm as well as any past experience and project work. Be prepared to be quantitative in your responses and expect follow up questions.