The least impressive thing at almost any private school is how they sometimes try and "sell" the school. It really felt like we were being sold a spot at the school, and it really wasn't necessary <it's a wonderful school!!!>.
What did you wish you had known ahead of time?
Grading is P/F. Schedule during the first year is EXTREMELY open - very few hours spent in lecture every week, and so studying becomes a personal endeavor, and most of the education is presented through a PBL system. Some people may not be able to make the adjustment easily from undergrad coursework.