What's with the rubbish kiosks they have in subway now? The interface is high latency and has bad touch detection. My wife wasn't able to order her normal sub because she couldn't de-select some of the ingredients.
They could be better for people who can't or don't want to give their order to the person behind the counter, but they're worse in every way in my use-case.
A colour-in-the-dots paper form would better than these dumb things. It's electronic voting all over again.