Three rounds of interviewing, first was supposed to be 30 minutes, took over an hour (load your parking meter accordingly). Second was over two hours, met with a handful of people for exhaustive questioning. The third was a phone interview for about an hour. Start to finish, took about 3 weeks. Depending on who I spoke with, I was received differently. Some were very open and casual, others were stiff and had sharp research related questions. Overall wasn't too painful, but don't expect a walk in the park. Know why you're there and what market research is.