Given an unpaid full project as a part of the interview?

This. Statement. Is. On. Point.

Glad it worked out for you in the end and that they didn’t waste more of your time.

I’m curious though, how did you deduct that sales and marketing drive concepts and design there? I’m asking, because as an interviewee you are also an interviewer, what questions should designers ask to draw out who in the organization calls the shots when it comes to design decision making? Sometimes it is obvious, and sometimes it’s not, but I feel that as a designer, gauging this is extremely important in terms of job satisfaction and career growth.