A quick glance at the website and the opening page of their linked 62 page pdf has my woo, magical thinking, sales spiel and bs detectors well into the yellow and heading for the red.
A SinglePC setup is not as good in terms of audio quality as a DualPC one linked via TVP/IP apparently. Who knew? And they emphasise you must only do what they tell you and only use the software and settings they tell you to use. If you do you get "analogue like sound" apparently. Which I can only assume means they process the binary data to add in some distortion, a bit of background noise, a phasing issue or two and for all I know or care real genuine emulated wow, flutter and vinyl scratches.
I couldn't be bothered to see if any DAWs are on their list of approved software. Digital audio is complicated in many ways, but very simple in one way. If the 1s and 0s are streaming nicely and without interruption from the disk to the driver's buffer en-route to the DAC chip nothing at all done in the computer will improve the quality of those 1s and 0s. They are fine just as they are. And even a by current standards ancient PC or Mac can play back stereo or 5.1 surround audio without a problem.
The only real-world problem in the computer is crackles and drop-outs caused by too low a buffer for the OS/hardware to handle. Which is usually cured by running latencymon to see what it finds, checking power settings and cpu sleep states/core parking and if necessary considering hardware upgrades. And dropouts are something that affects people like us who need as close to real-time computing as possible to create, mix and produce audio, not the people the product is aimed at who play stereo or surround files.
I will say one thing though, this is the first time I've seen it suggested that you can improve the audio quality of a media player by loading an alternative shell instead of Windows. Must be serious stuff then.
Applying a bunch of "audiophile tweaks" to the operating system is about as necessary as using silver mains cables to reduce the smearing in the treble and improve bass timing. Or is it to improve the depth of the mid range? No, sorry, I remember now.
It's to improve the bank balance of people who sell solid silver mains cables, and serves no other purpose at all.