Anecdotal evidence is anecdotal and I'm a major skeptic of all things, but I'm amazed at hour accurate Leaky was for me.

My wife and I pay $119 per month for car insurance and Leaky's magic was within $3 bucks. Wow.

EDIT: Might I suggested some kind of accuracy checking feature? For example, my Leaky estimate vs. actual was really close and it would be cool if you collected data on this. Like if I selected "I use company X and my rate is $Y", then you could compare accuracy.