I have always done the work of expressing my desired food item. Without a kiosk that desire gets repeated by another person to a computer. With a kiosk that repetition does not happen, the order is directly expressed to the machine. It appears to me there is 50% less labor with a kiosk.
The question is if it requires more effort than using the cash register.
I agree the kiosks are a bit harder for a customer to use, I accidentally ordered something like 80 chicken nuggets the first time I used one, simply because I tried to add extra sauce.
I still prefer them because it's easy to have a bunch of kiosks which means there are shorter lines.
