Acupuncture therapists and those involved in it would not want scenar devices take away their patients (and business), so we can not hear them speak the truth about these devices.
On the other hand, these technologies and its uses are confined mostly to Russia where it is pioneered and widely used. But due to lack of their interest in proper marketing through out the western world it is left mostly to the greedy individuals with their MLM marketing pitches to distribute these devices here with the result we see all kinds of sales pitches, false promises and other nonsenses.
Any treatment methodology has its own merits and demerits and it is for the individuals concerned to carefully weigh all the options and choose the one that is right for them and it is also important for them to be careful as to whom they listen to.