There are many methods, but why not try the Carl Sagan Baloney Detection Kit?
Right away, one sees the fallacy.
Its an "argument from authority".
That is, all of these sources say its good, so it must be good.
Well, what if these sources are biased, deluded, wrong, or getting commission referrals from Amazon.com?
Also, there is no independent confirmation of the stories in Yo
Forum:
"Cults," Sects, and "New Religious Movements"