Never in the history of the internet has anyone mounted a more thorough propaganda campaign.

The criminals (in my opinion) behind this really know how to manipulate search engines so it’s almost impossible to find anything negative about it.
In addition, chat rooms are found and bogus success stories are posted, negative comments removed. What a clever and massive effort they have demonstrated.
If they devoted all that effort for the good of mankind, we would all know their names. As it is, they must hide their identity.
How do we know they are bogus?
In all the history of mankind no one has ever produced a free energy machine that can be operated by an independent party. Never. Not one time. Only the so called inventors can ever demonstrate it in controlled conditions.
Be real, what are the chances of you the reader finding one on the internet?
One that you can easily build in your spare time and can be explained with elementary school level pseudo science? No really important discovery can be kept a secret for long.
The technology for the atomic bomb was even published and available to the public (it’s been recalled since).
Don’t be so open minded that your brain falls out (not to mention your wallet as well).