[ascagnel_]

When I last used one of those systems, I found it to be reliable, as you said. And to keep people honest, they'd randomly pick shoppers to go through a regular checkout, which is both understandable and annoying.

It also made it super easy to bag groceries.

[wojciii]

I used something like this deployed to Coop stores in Denmark. It's a nightmare to use and the random check pissed me off enough so I deleted the app and decided never to use it again.

Try shopping with a little kid and using one hand on your phone and being randomly checked when there are 20 people waiting before you. This is not working in the current version of the technology.