Pretty cool. But a lot of it doesn't really work once you click into a particular state. For example, from this page, if you click on "All auctions in Georgia", it lists all auctions in the country. Or if you click on "electronics", it doesn't show just electronics in Georgia.
Thanks for surfacing this. Not sure why this is breaking, but I am looking into it and will fix it as soon as I can.
Update: This should now be working the intended way (ie for Georgia, showing only GA results when you click out, and filtering for the category within GA).