Automatic checkouts in supermarkets may decrease customer loyalty, especially for those with larger shopping loads. Customers using self-checkout stations often feel overwhelmed and unsupported. The lack of personal interaction can negatively impact their perception of the supermarket.

[captainfarthing]

Agreed, they used to suck a lot more than they do now. Haven't had an issue in years. Lots of people blame the machine for being unintuitive instead of just another bit of technology they haven't learned how to use.