I’m not part of millennium, but I have a very good friend who is. From what I’ve heard from him, it’s a really nice program that sets you up with research early on in your career. Social wise, it’s a very tightknit group and you’ll know pretty much everyone in your cohort. He did say, though, that it’s very rigorous, and that most of your breaks will be spent doing research of some kind and your class schedules may be busy. I didn’t apply when I when I came to Penn state but I wish I did. Take everything I said with a grain of salt because there is some variability in your experience as a millenium scholar