Can't disagree with anything Greg said.
Also, a couple things caught my eye, to wit:
"A guitar’s sustain with Acoustic Tubes is up to 20% longer*
*compared to the same exact neck made in a traditional way"
Show of hands: How many think that, working with an organic material like wood, "the same exact neck" is even a possibility? Any 2 wood necks will be different, so how can you measure what, if any, effect the holes have?
"Better sound transmission
Thanks to the use of specialist material sound transmission from the nut to the guitar body is much faster"
First, what the heck does "specialist materials" mean? The neck in the pic sure looks like maple to me.
Second, logic would dictate that open spaces would slow transmission, not speed it.
Third, sound does not travel down the neck anyway; that would be vibration - it isn't sound until the top activates the resonant chamber of the body. Which leads me to the fact that the sound of an acoustic guitar does not come from the nut; the speed of transmission even of vibration down the neck is, I think, a nonfactor, as the actual sound comes from the strings passing vibration to the saddle, thus to the bridge, and thus vibrating the top - which vibrates the air inside, which is the sound.
It's interesting, and I'd like to play one to see what I think with it in hand - but by their description, I tend to think this one can be filed under "guitar players will buy anything" (though usually that only applies to gadgets; when it comes to our instruments, we tend to be the most conservative people on Earth - thus the 3 best-selling electric guitars having been introduced in 1949, 1952, and 1954, and the dominant design ideas in acoustics being settled between 1850 & 1935........)
Peter
