Warthog Multisharp Guided sharpener for Benchstones

[Nosetotail]

Forgive me for seemingly reposting about Warthog sharpeners, however I feel my original post is obscuring the item I am interested in learning about. While I was checking out Warthogs v-rod system, I ran across this: http://www.warthogsharp.com/enlarge.php?ProductID=6

http://www.warthogsharp.com/products.php?CategoryID=1

Scroll down for the multisharp.It looks like a well thought out guide system for use with bench stones.

I am wondering if anyone as had any experience using one?