I'm afraid that this tool is in price limbo, much, much too expensive for a hobbyist (especially when you can etch or CNC your own) but of not good enough quality for a company that wants to prototype PCBs (at least that's what the boards look like to me).
I disagree on both counts. It is affordable to hobbyists (although only those that really value time over money - it's a lot more expensive, more hassle and lower quality than OSHPark). And a lot of companies could use this for prototyping, i.e. something between a breadboard and final PCB.
I agree ... scanning through the images, I can't find an instance of a trace passing between pins on through-hole parts with 0.1" centers. This is critical on a milled board because you can only make a two-sided PCB.