It was ok. Typical interview where they get to know you and you get to know them. Some technical questions. Then there was a case study where you have to analyze some data and answer some questions.
I applied online. I interviewed at Kantar (Waltham, MA)
Interview
Submitted a resume via their website and was contacted weeks later for an interview. 3 half hour long interviews and a presentational case study. Seems like they don interview a ton of people.
Interview questions [1]
Question 1
Name a company that you think does a really good job setting its own brand apart. Why?