good things... i found the admissions staff to be incredibly friendly and helpful. facilities are nice but not the best compared to say stanford... oh my goodness... unbelievable facilities at stanford. no comparison.
another good thing is the noncompetitive atmosphere. no gpas or class rank, so people genuinely help each other because they don't care about class rankings.
another positive is the 70 hour pro bono requirement. it seems like it would be a great opportunity to practice the law before entering the workplace.
philly is a relatively cheap city to live in.
if you get bored of philly, nyc, atlantic city, and dc are within a 2-3 hour drive.
overall, penn is a highly regarded institution with anything you could want in a law school.
That said, if your alternatives are other top 10 schools, then maybe it's not worth waiting around for Penn to get back to you.