I was brought in for a whole day interview with several people from the engineering team that I would be working with. I talked to the head of the department, the engineer project manager as well as several engineers who are currently on the team before talking to a HR representative.
Had an interview with several people over the course of a day. It was with the head of the department and manager of the department. Overall, it was a pretty good experience
There was a single in-person interview. There were 4 people who interviewed me (my manager and 3 of my team members). Fairly quick interview with general questions. After the interview, one of them toured me around the factory and introduced me to the people working there.