Does anybody have experience with these? They seem too good to be true, so, I assume they are.

http://www.sawyerpointonefilters.com/

I believe this is a thread on it.

Not sure what happened or if any one had done a review but I'm still interested.

Cool, thanks!

I bought the pt zero 2, the website had testamonials from organizations  that use them in third world country's.
I would think practical use in real world scenarios would be better than the tests that one could do here.
I frankly did not want to take mine down to the Ohio River and  test it. But I wouldn't survive on it, would pick
a stream or small lake first.  I am a newbie with an opinion, but eager to receive good advice.