Pros
The BEST reason to work at Disneyland is that SOME of the magic that Walt Disney created is still there. The guests are usually wonderful, and it's a special experience that you just can't reproduce elsewhere.
Cons
Management. Wages. Lack of respect from management. NO work/life balance. Disneyland has the worst management I've ever experienced. They treat the "Cast Members" (employees) as paid slaves, making you work outrageous hours (sometimes 60+ hours a week) during the summer months, then only 10+ hours a week during off-peak times. They offer benefits only if you can meet ridiculous off-peak "minimum hours worked" schedules, and to top it all off - you get paid $8-$10/hr - which isn't much in the off-peak season. And if you try to have a second job to support yourself, they won't work with YOUR schedule, they'll just fire you once you've "called out" too many times.