Me too.. lol
It seems like a 50/50 debate on various forums as to whether to use it.. Mostly varying opinions on dispersing pressure points and whether or not it "traps" nutrients. Personally I think fauna is gonna travel vertically and horizontally through the sand bed, so I hardly see it as a nutrient trap.
I'm obviously on the side that says it doesn't have any/many serious negative side affects to the tank.
but it's also something fairly new to me. Meh!
One argument against it that gave me a chuckle was "Have you ever seen a TOTM with it?"
While possibly true, I wouldn't know as I'm not one to follow every TOTM out there.