Mostly normal interview questions you would find in any engineering interviews. Had a few more complicated dynamics questions so I would study up for that. Overall would say it was a mostly neutral experience, not too difficult not too easy.
Interview was very good. Everyone was friendly and professional. I was asked a lot of technical questions. overall, interview took 8 hours. I talked to 8 people. 6 of them mainly asked technical questions and 2 of them asked more behavioral questions. They showed me a couple of labs at the end. overall, had a great experience and was treated very well and professional.