The first round was through my college recruitment process. I was interviewed by a current ELP Associate and someone at a Director level. They were both very nice and engaging. The interview was entirely behavioral; however, it was more challenging than any other behavioral interview I've been a part of. Even still, it was conversational and relaxed.
I was invited to the second and final round in NYC, which included three 1 on 1 interviews with Senior Vice Presidents, a case presentation, and a personal presentation. The two associates who interviewed me first round reach out to me to answer any questions I had moving into the final round. Everyone was friendly and everything felt more casual and comfortable than I anticipated. These interviews were also very conversational and the day flew by. I felt good about them and really loved Nielsen, but I ultimately did not get an offer.
The only negative thing I have to say about Nielsen is their method of rejection. I got a generic email late at night from a recruiter I did not know. After numerous interviews, meeting with multiple people in the firm, and interviewing alongside a small pool of candidates in the final round, I did expect a phone call or at least an email from someone I became familiar with throughout the process. My immediate reaction was that it must have been a mistake because I could not imagine that after such a positive experience with Nielsen, they would reject me in such an impersonal way.
Overall it was a good experience. I felt valued until the last (and most critical, I would argue) moment.