I worked in a drug detox as a nurse, and a few other health-care jobs, pretty much the same thing as a psych ward most days.
It wouldn't be a fun place to be locked up for any length of time, interesting until bedtime for one day, maybe.
Food is generally crap, boring all around; you can only listen to a guy grunt or make other crazy noises repeatedly for hours, before you go crazy yourself. You also have to deal with the people that finger paint with or eat shit. Or the sweet, little, old lady nympho, who has solo sex 48 times a day and sneaks up on you and pats your cheek with wet fingers, while you are doing paperwork! But that didn't happen to me..
You generally don't get a private room and have to attend mandatory classes with the other patients. It'd be pretty scary waking up to your roomie standing over you doing odd stuff such as: screaming, crying, laughing or pissing on you.