Ann: SBW Year to Date Revenue up 17.5% Year on Year, page-16

I think no system is perfect and there will always be some human intervention involved - it may be an alert comes up similar to what occurs when self checkouts at supermarkets have issues with items you put in your bag.

My view on this tech is a 'majority of the time in a majority of cases' it works flawlessly......just like the self check out at my local Coles does.