Hi Jacob,
Just had a look at that website as well as some images of these herbs and fruits. Some were new to me, some I have grown, some are weeds, some I have used, some you can by over the counter.
I wouldn't give much credibilty to those testimonials. Many talk about weight reduction "I lost 20 pounds in a months, 30 pounds in 6 weeks" etc.
It's all a bit too multi-purpose and vague. And it's very very expensive. Who has that much spare cash to blow on tea.
My advice is to find out what you need for your own specific needs and go with that. Ginger tea is great with a little honey and lemon. Papaya is great for the skin and the mucous membranes, etc.