Folk are getting hung up on the keyboard layout and poor buttons, which are bad but only the start of the problems with these machines.

It has two separate asynchronous screens, two sets of printed instructions (plus t&cs), more instructions on both screens, then two keypads (but with the same symbols although they're not interoperable). There is no consistent self-explanatory language for talking about the various buttons, knobs, slots and problems, and how the user's attention should flow between them. If use of this machine wasn't mandated, nobody would ever, ever touch it.