Yes. After looking at the website I got my head around what it is doing. Suppose it does “looden up” the componants on a new guitar. Probably wouldn’t do anything on onethat has been played often.
I’d save the money and just play it a bunch.
FWIW years ago on a whim I bought a Silvertone acoustic for $6...new! Plywood of course...probably made be Samick.
I was learning how to set up an acoustic and wanted a knock around guitar to practice with. If it got screwed up, so what.
Spent a lot of time with it and to this day everyone says it is by far the sweetest sounding and easiest to play of any I have ever had. The volume isn’t there but it isn’t bad for my fingerstyle playing.
And even though it is supposed to be laminate top ...I suspect it isn’t...it has mellowed nicely. The only thing better was a Martin and that was a ton more money!
Seagull was nice but seems too....delicate.
I believe what you’re saying as I’ve heard this before. If you put a violin or guitar in a case and leave it there it will be stiff. I think this device “breaks in” a new guitar. Doesn’t age it by any means, just takes away that harshness. https://www.youtube.com/watch?v=ZsRhNzdB-g8