Rotovac Powerwand - for carpet water extraction machines

Does anyone have any experience with the Rotovac Powerwand? Does it really work as good as they say on their website compared to a regular wand? Is it worth the money?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.