Any1 used a Hitchdrive Power Jockey Wheel on their caravan/camper?

Found this jockey wheel when doing some research for another post and it looked interesting. I was wondering if anyone here has one or used one and can give a report on its effectiveness.

Have a look at it in the Features Section and run the mouse over the different parts for an explanation on how it all works.

Priced to keep it inline with the Maco wheels too.

The bottom footplate is interesting and could be adapted to others to aid traction if needed.

hitchdive power jockey wheel

wont be long till there is a cheaper version on ebay i suppose ....