Soda Blasting? Isn't that about the same as what they are offering?
Wouldn't finish always be based upon the particle being shot, and the material being blasted?
And pressure, angle of blasting...
More ordinary blasting use grit or beads, which act differently, while Vaporblasting mix water into this,
Particle in water have a some different, softer impact...

...less aggressive...
Nutshell, plastic particles are also one can use which is less aggressive.
