And to add to the general positive experience, there's the G4 Mini used as a Firewire/mLan audio server in my studio, four hours a day every day from new, without ever (yes, really, ever..) a single down minute. And if and when the next one comes out, one of these will join the little G4, equipped with a very much larger hard drive.
So they're apparently both useful and reliable; this is hard to place a value on, but the corollary to my experience of the Mini is surely that of my very powerful and expensive HP laptop that falls over at a moment's notice when asked to do pro-audio-related work.
Your concept of failure could use a bit of an overhaul perhaps, and some evidence of personal experience would avoid the charge of witless trolling on your part.