Printing with improved PMC (which is what this sounds like) doesn't seem that revolutionary to me... I know there was a Kickstarter a while back for metal-based PMC-like filament to use in regular 3-D printers (for kiln firing later), and I think somebody already makes a device to print using PMC itself. While doing so precisely, strongly, and cleanly enough for mechanical applications, and with a much broader spectrum of metals, is great, the prices seem rather far from the headline hype. (Not that the current options I mentioned don't leave much to be desired.)
Filamet is the Kickstarter'd filament I was thinking of. It looks like they've got a decent product, though it also looks like the campaign became a bit rocky (typical Kickstarter delays, etc.). (I didn't back, so can't speak to it beyond appearances.)
