This stuff is good, its way above any "garden Fabric" elsewhere. They say this stuff is used as an underlayer for new roads, probably is. Where holes are not cut into it, only had a handful of weeds pushed through in 4 years.
But on another note, be careful not to purchase products that require assembly. There probably will be no instructions and after multiple days and conversations, it looks like they will screw me with a $250+ product and not provide the instructions promised.
I no longer trust this company!