I have made chicken like this for sometime ... it's just like the deli chickens you get in the grocery!
BTW There's no need to ball up the tinfoil as they suggested. Just turn a bowl (or whatever) upside down in the crockpot and set the chicken on top. The idea is so that the chicken is raised up above the drippings, so you don't have greasy meat to eat!
I change up my seasonings ... sometimes sprinkling with BBQ spice or thyme or poultry seasonings ... whatevber you like! and often stuff an onion or two into the cavity for extra flavour. And sometimes drizzle some BBQ sauce over the top of the chicken!
It's the quickest, easiest meal!