Has anyone here heard of or used/using "Rocky Road Xterra Rockrails"?

Their claims are pretty bold, "Rocky Road Xterra Rockrails are the top kits on the market for Nissan Xterra, there is no debate on this...," I want to make sure this is legitimate and not puffery.

Go go http://www.rocky-road.com/xterra-rock-sliders.html to checkout their website.