A CPU fault because of a bad early ROM is not a transport problem, it's a we didn't check it before it went out problem and was always present. I don't believe
@Crewey expectation is to have a super mint new in the box fully restored pinball, however its not unreasonable to expect a machine that was purchased at a premium from a company that states all machines come with 120 point check to receive a working checked machine, that didn't have a before shipping fault, not a cable fell out, a flipper coil went,
It's great they are offering a resolution, however it boils down to a trust issue, they state they did checks, clearly they didn't based upon one of these problem, the buyer then starts to question other things, writely or wrongly.