I almost was part of a startup (which we were going to submit to YC) that did exactly the same thing. We were trying to negotiate with providers of insurance comparison quotes to get the data, with web scraping as a backup precisely because I knew the insurance companies would not like us scraping their sites. We were not able to make our data deals go through, and so the only option left would be exactly what Leaky is doing now: compute from the publicly available data. We did not feel we could do a good job of that at the time and that combined with other reasons caused our efforts to fall apart. (This was 2010, though we'd tossed the idea around since 2008 I believe.)

Anyway, I get what Leaky is going through and also the need for a product like theirs in the industry.