Pros
You're working at the World Wide Leader. If you're hourly on the studio or dot com side, the opportunities for OT and holiday pay are plentiful. You can meet your sports heroes. End-of-year bonus. 401k company match. Free Disney passes, and discounts at the hotels. On-site gym and cafeteria. You have the opportunity to learn a lot if you are proactive.
Cons
Review process is convoluted-- you're expected to write goals regarding things that you have no control over (like assignments) and then held to them. You have zero control over the direction of your career (they put you on the track that they want you, not necessarily where your strengths/interests lie). It's hard to get promoted if you aren't friends with management. People who do go out of their way to learn new skills are put in positions to use them with more responsibility but management is shocked when you also ask for more pay or a promotion. In studio production positions it's really hard to get holidays or weekends off. Having seniority no longer means anything. Perception is more important than reality.