I have not heard of them before. It's pretty powerful. My guess is this type of venue would be met, mostly, with onlookers thinking it is extreme and ridiculous. I imagine there would be all kinds of negative comments and people laughing, rolling their eyes and shaking their heads. But if it reached and touched one person, it's worth it. And there are a lot of 'one persons' out there. The world can change one person at a time. I was that one person at one time. Who would have thought that someone handing me a PETA magazine, of all things, would change my life forever.