I applied online and was invited to first round interview at the Boston office. My preferred office called me and helped prepare me for the interview by describing the process and walking me through a practice case. The first round interview consisted of two 45 minute case interviews where the first 5-10 minutes is behavioral and the last 5-10 minutes is open for questions. I tripped up on my second case when I wasn't deliberate enough with walking through what I needed for the case and as such missed some information. Overall, the people are friendly. They are prompt in letting you know the outcome of your interview.