Not really, I would not be interested in their opinion of other zappers, only ParaZapper, most of which use Rife frequencies and some that meet or exceed Rife's accuracy requirements. They are quite efficient and well rated by our customers.
ParaZapper is not a regular zapper. Most are Rife/Crane pad type devices that provide as good of results as some of the far more expensive Rife machines. Even the cheaper ones are more accurate than the Rife Digital ones at some frequencies.
They also have the advantage of being portable so that users can take them along when they travel. They are also quite rugged so that many missionaries take them into the jungles, the mountains, and other remote areas.
I do not have any objection to you or anyone else selling Rife, or other related technologies but I will quickly inform of issues or problems that I may see.
As for Rife, I support Rife for those who both need and can afford the price. I also think that there are some benefits to using the Beck protocol.
I believe that I even pointed out to you, possibly the best place to sell your Rife machines.