Long and drawn out. It took a couple months to get through 5 interviews and is a substantial investment of time. Most of the interviewers were good but one just seemed to correct my responses with a re-wording saying essentially the same thing.

Panel style interviews. 4 different interviews totaling 5 hours work of questions. Great experience at the beginning. I was given the impression of getting an offer, but no one ever responded. I had to reach out myself to the recruiter to be told that the position was offered to someone else. I lot of time wasted.