These hangups seems to me like the kind of thing that is going to greatly improve over time. As was mentioned in another reply thread, the kiosks would benefit

These hangups seems to me like the kind of thing that is going to greatly improve over time. As was mentioned in another reply thread, the kiosks would benefit from being able to simply repeat your order. It's only a matter of time until this is a feature. Similarly, what falls under your definition of "normal use case" is going to slowly expand as the developers become more familiar with what implementations are important (and have better libraries to deal with the routine implementations).