The first interview was a phone interview which lasted about 20 minutes. They asked all of the basic interview questions you would think of, plus a few basic math questions. I was notified to come into the office for a second interview about 2 weeks later. It lasted about 4 hours plus a lunch, and I met with 4 different interviewers. Everyone was very friendly, but the interview questions were unremarkable and didn't reflect at all on the position (eg "Tell me about a time you had to solve a problem", "Tell me about a time where you worked as part of a team" etc.)

I interviewed with 3 people. Questions were pretty standard. I did all 3 interviews in 1 day. First one was low level associate. Second one was mid- level. 3rd was with VP.