I’ve never had a failure, but one chain near me is a bit annoying with its “place your item in the bagged area” setting… I’d rather just put it in my cart directly, especially when I’m running out of room.
I find it easier to sort my items the way I like and to verify prices immediately, rather than having to watch the cashier and look at the machine, then ask the cashier to stop and remove/question something that scanned wrong…
And I’m surprised at how often I’ve had cashiers punch in the wrong produce code to something that’s more expensive than my item. Have they stopped training cashiers in hopes that they’ll make up for the 4011 phenomenon? They can’t be doing it on purpose, but it’s just weird to me.