Sometimes I see a new product or website, think "this sounds to great to be true" but are not sure if there is some hidden catch or something else which I should be aware of before I decid to use this tool.

http://www.pzizz.com/ is such a thing, it sounds great, but I'm not sure if they can manupulate me with NLP.

Which keywords beside the product would you use?

I tried "pzizz" an dangerous, warning and some similar words but aren't sure if I would find something or if other keywords are better.

(Pzizz is only an example, I wished to have the "right" keywords to find out about the evil factor of something often before)