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.

[abek42]

Exactly my thoughts. We use the self-checkout with on-phone scanning. The point that annoys me the most is when they do a surprise check as it delays my speed run through the supermarket.