Bryan,
There's not much you can do with someone's log in besides buy them more modules
The rest is done by e-mail interaction.
If you are skeptical of the $ back guarantee, check with your credit card co. I believe they would refund your $ and take issue with the PATHS co. if there were any problems.
(The PATHS staff consists of some of the most wonderful people on the planet, but you won't know that unless you get some interaction with them.)
I will also say that for me the results were smack dab obvious within two weeks. There was no wondering if I was getting any results. I'd tried other things before PATHS and was like

on certain things no matter what I did.
XO Jessica