Travel Tools - Anyone heard about/used Autoslash?

http://www.nytimes.com/2012/02/18/your-money/autoslash-a-rate-sleuth-makes-rental-car-companies-squirm-your-money.html?pagewanted=2&_r=1

Wondering about whether this is legit or not...anyone had any results here on FT?

The guys who started it are right here on FT:

http://www.flyertalk.com/forum/travelbuzz/1093166-need-ft-community-help-review-autoslash-com.html