Going to Disney in 13 days and making this a must-do on my list definitely!
(And will probably be in tears upon exiting wanting the old JII back with the upstairs Imageworks.)
Enjoy the retro ambiance in those choice restrooms.
You will want to linger in there just to hear the music loop play ....so be sure to wash your hands very very slowly.
Then be sure to stop and pretend to fix your hair in the mirror for a longer period of time then is really needed to stretch out your stay even longer.
Have a great time...!