What do you like most about being a Technical Program Manager?

"I got into Apple through an internal referral and interviewed for two EPM roles, but I completed the full process only for Siri. The Siri process took about two months from late January to late March, started with just recruiter emails instead of a recruiter call, then a short hiring manager chat, then a six person loop of 30 minute interviews, and then two additional director conversations. The whole thing felt much more casual than other big tech interviews I have done, with a lot of behavioral and project walkthrough questions, a lot of time left for my questions, and almost no real technical grilling. The most unusual parts were how many senior people I met, including directors after the loop, and the fact that my hiring manager came back in the loop and asked me zero interview questions. I passed the interviews, but I am still negotiating because the level and compensation came in lower than I expected."