The first part was a phone call with HR, an interview with the manager, panel interview over two days. It was all good conversation but I was not the right fit. I had thought it went well but they had an other idea.

I got this interview because someone passed my resume to the hiring manager and they saw a fit based on my background. So they directly bring me in to the in-person interview without phone interview or sth. Interview was not hard, most conversational. They show you their product and ask for your ideas.