I haven't ever seen or played one, so maybe they're great, but in terms of what is written on the website, a lot of it sounds like complete nonsense. For example, the bridge with "drilled holes" increases endurance. It's possible that something has been lost in translation to English, but I've no idea what increased endurance could be, and why it might be a good thing. I've certainly never seen a tired or worn out traditional bridge.
One more example (I could give others) - the back is shaped in a high-tech press. Not sure what's high-tech about it - it's basically just a back formed in a mold, but the claim that this leads to "15-20% increased acoustic properties" is fairly meaningless. Which properties are "increased", and how has this been measured?
The "acoustic tubes" claim is a bit more specific - "Guitar’s sustain with ‘Acoustic Tubes’ is up to 20% longer than in traditional guitar", but what guitar has been used for the comparison?
Workmanship looks very good, and the styling has something about it, and maybe they sound great, but I certainly wouldn't buy one based only on the claims on the website.
James Lister, luthier, Sheffield UK