My daughter worked at Disneyland for 3 years and it was what she called "hell" and at minimum wage less union dues plus unpaid time in costuming and having to park off site and shuttle over to the park added up to just about working for free...
Add gas and it was a total loss...
The only reason she really stayed so long was cause she loved the unlimited access for her and all the free passes she got for friends/family.
Happiest place on earth??? Not for employees...