In total there were 6 (six) interviews that took more than 3.5 hours of my time. Hiring manager showed up late to both of their interviews. Interviews themselves weren't difficult. I talked about 25% of the time and the rest was listening to a lot of people praising Eli Lilly. The questions were standard and they want STAR-format responses.
What put me off the most: when I hadn't heard back in 3 weeks and asked to confirm that I wasn't selected, the hiring manager didn't just confirm this like a normal person. Instead, they basically said, "sorry, I was on vacation for 2 weeks, so we're behind but you're still in the running"... then reposted the job on LinkedIn very shortly afterward.
I eventually got a very impersonal, automated workday-generated email rejection with this gem of a quote: "While it is not Lilly’s policy to provide feedback on individual candidates, we wanted to connect with you personally at this stage in the process."
I mean, it wasn't the worst interview process I've ever been through, but the whole process reeked of incompetence and dysfunction. The process took 2 months in total. I was obviously disappointed, but relieved not to be selected after seeing how they operate.
tl;dr: Everyone went on vacation after my last of several interviews, apparently forgot about the interviews, and decided to do it all over again. Hard to tell if they didn't care about wasting people's time, if they were incompetent, or both. I got the vibe that it was both.