First time I've actually watched a training video end-to-end... I'd love to hear from someone who uses this system, or systems similar, and whether the learnin

First time I've actually watched a training video end-to-end... I'd love to hear from someone who uses this system, or systems similar, and whether the learning-curve is worth how fast you can "grok" and order? I suppose it solves issues with miscommunication, poor handwriting, broken ticket machines, etc...