I've had the exact same experience. I could scan the items a lot faster than the machine allows me to (sure, not faster than an experienced human cashier), but

I've had the exact same experience. I could scan the items a lot faster than the machine allows me to (sure, not faster than an experienced human cashier), but it insists me to bag every item, has problems a lot of times when it stops and asks me to call a human agent, can't use some of the gift cards that I want to use with it, and doesn't override the price when the store has advertized a discount and the machine doesn't detect that. Also, for things that don't have barcodes (fruits/vegetables etc.), you have to 'search' from a list and either select the image of the perfect type of pepper that you're buying (or enter a code) - which makes it even slower. A human cashier remembers all those codes and very quickly types in. For a machine to do that right now, it will have to use some advanced image recognition techniques to just find out which of the 100 kinds of Apple it is - and set the price accordingly. Sure, all these problems can be theoretically fixed, but so far, I guess we're just not there.