Solid choice for the new secondary prompt. Plenty of room for you to elaborate on how you'll integrate yourself into the Penn community whilst showing your Perelman love.
While we're on the topic of PennLove, I reckon I'll share a few of the things I liked most about the school.
1) Curriculum. I used Penn's curriculumas a model when I began thinking about which schools I would apply to. While I know that there are people who prefer the more traditional two-year curriculum at other fantastic institutions, the 1.5 year pre-clinical phase is ideal for those of us who are eager to get clinical exposure. I've heard how great six extra months of rotations can be when it comes time to apply to residency. Not only can you broaden your clinical exposure if you're unsure as to what area of medicine you'd most like to practice, but if you decide to pursue something particularly competitive, you've got that extra time to get in pertinent experiences.
2) Consolidation of resources. Penn is one of a limited number of schools which is located within a larger university campus. Research, clinical, and academic opportunities are all right next to one another. Always wanted to take an extra art history class since you enjoyed that one during undergrad so, so much? Want to learn to be a businessman/woman extraordinaire? Care to ponder the ethical implications of the transplant surgery you just assisted with alongside an eminent figure in bioethics? You can do it all at Penn without going outside! (I may be exaggerating a little here, but everything's real close)
3) Clinical experiences. HUP, CHOP, student run clinics... No matter what demographic you want to work with or in what setting you want to do it, there's a place for it at Penn. Poke around on the website to see all of the opportunities in Philadelphia and abroad.
I know I only got to three, but alas, I am le tired and will bunch several things together here at the end.
The research opportunities are awesome. Basically any clinical, translational, or basic science interest you have can be pursued at Penn. The dual degree and certificate programs give students the opportunity to make their medical education as multidimensional as they'd like. Oh and there's also that enormous Perelman donation that's going to make your financial aid super awesome.
Too tired to go on for now, but I will update with anything else that comes to mind. Good luck to everyone and feel free to post with any questions you want one of us rising M1s to take a whack at!