I've used mine for hundreds of gigs at this point. All around the US, as well as jaunts in AUS and UK (love the dual-voltage capability).
My Noble has been stepped on, spilled on, rained on, snowed on, kicked, sat out for hours in direct sunlight, left in freezing vans and hot trailers. Took it all like a true piece of professional equipment and was none the worse for wear.
I recently sent it in for a repair (damaged due to bad power at a rehearsal space) and the only other thing wrong was that one of the tubes was on its way out and wasn't up to Jack's specs. The only thing that could kill my Noble had nothing to do with the unit itself. Jack did a beautiful repair and it's been better than ever since then.
I've said this before, probably in this very thread, but I relish the chance to repeat it:
I have a friend who keeps his Noble in a pelican case (rather than on a board) and practically uses white gloves and a velvet pillow when he handles it. The Noble is an expensive piece of gear, I get it. Some people can't help but have anxiety when they spend so much money on something. But I've got empirical data from real-world stress testing, and I'm here to tell you that the Noble is a freakin' TANK.