Stain Free Granite????

We have a company in the area marketing their Granite (http://tanbrown.org) as "Stain Free" and (http://maplered.com) guarentee it to be stain free for 15 years. Ther are billboard around town, and (http://maplered.com) it is all over the radio. I get a lot of calls wondering if our Granite (http://tanbrown.org) is stain free. That is a tricky question to answer. Are you guys seeing this elsewhere in the country? Your thoughts......