Personally, I would not use a product that is that expensive, does not kill biofilms, still requires the use of chlorine to destroy biofilms (which indicated it is NOT a fast acting primary sanitizer), does not list its ingredients, has a very vague website, does not provide the science behind how it works but only provides "testimanials" from "users", and (since I am in the USA) is NOT an EPA approved spa sanitizer.
Snake oil is snake oil.