Syngenta Graduate Process Engineer interview questions

Initially submitted a CV recruiter booked a 45 min interview with two senior managers asked technical and competency based questions . Then after two weeks HR contacted to move me to the next stage where I stayed a night in hotel the interview was a 2 day process the first day a presentation on something I had a technical role in and second day 3 , 1hour interviews on competency , technical and motivational fit for the company and a site tour then HR got back with a final response after two weeks .I did think the process was a little over the top