Quoted from TheLaw:I've seen quite a few comments aboot updates potentially killing nodes BUT I don;t know if that actually happened or people fearing it will.
The new updates are capable of updating the firmware on the node boards. It is software, so if the node board firmware upgrade doesn't go well, it may get in a state where it can't finish the update (or be updated again), so it fails. The reason they don't mind taking them back, is they can probably put them on a bench and flash them again and poof they are alive. Also it's good to see the dead boards and figure out what has gone wrong.
If it is a software issue, then as they get their upgrade procedure working better it should go away. If it's an inherent design flaw, it may already be addressed, but they may have 1000s of the old design (tiny board so bet they are ordering in large batches) that they will use up first.
I haven't had any problems with my machines and most everyone I know hasn't had problems other than an out of the box issue here and there. They seem to be pretty stable after getting some time on them.
Time will tell sure, but I'm pretty optimistic too. I've had flaws with my cars too, recalls etc. so it's not just a pinball issue.