ALL electronic products fail.
Just like here, the failures get an outsized amount of attention, since it's usually someone who runs into a problem, has to send the unit back, then gooses his 'My <whichever unit> broke' thread endlessly for the week or two they're not able to play. All with the inevitable 'ooh, I've got gigs lined, up, could this happen to me???' comments.
We never get failure rates for anything, but basic internet saavy tells us that it's not NEARLY as high as the chatter would have us believe.
Nothing to see here, move along. Get off my lawn.
R