I love the cargo barrier. I leave mine in almost all of the time.
You can see that it has some good space behind the 2nd row headrests also. I can fit my huge tent pole bag there or a bunch of duffles or whatever.. Now since its on the people side of the barrier you do have to secure things on that side. I use super quick fists.
You can fit a front runner stainless steel prep table perfectly there. Also, an ARB 63qt should fit just fine with the barrier in place.
You can also run the pull cover with it, but I dont because it gets in the way of my table and pulling the pelican case in and out.