My personal view:
has done several important observations and there are many very good advices in her books. But yes she promises far more than she can deliver, she do not have a cure for all.
When you figure out something like a zapper, then it is easy to get a bit over optimistic. Yes I think it work, but it is not a cure for all infection diseases, far from, but I think for some.
Same with herbs, many good anti-parasitic and anti-bacterial herbs, but again there is no single simple mix of herbs that kills of every- parasite
and cure it all.
Same is true with classical medicine, it can cure a lot but far from all.
There is however another problem often not focused much on, it is to get the right diagnosis.