The client exposure, very talented intern class, high compensation and the Disney trip at the end. The Disney trip is rival to none - PwC's relationship with Disney creates a very, very memorable experience for their Launch attendees.
Working with so many people in such a short time, it's difficult to forge deep relationships.
Advice to Potential Interns
Meet as many people as possible. Dress nicely. Everyday is an interview.
Advice to Management
A longer internship would be allow the interns to forge more relationships, which is good for the intern and the firm in the long run.
Sample Interview Questions
Please explain a time in school when you were faced with adversity, and how did you overcome it.