On my third line-x vehicle.
Love it.
Stuff will still slide a bit, that's not the point of a spray-on liner.
Ditto - also on my third Line-X. Started using it in 2005. Has even improved over the years with more color and thickness options. Free lifetime (original owner) repairs if you damage it.
And like he said - anti-skid is not the point or purpose. Get a rubber floor mat and load bars/net/bungee cords for that.