Sorry to resurrect such an old thread, but it's about the only one I could find about the Nifty CargoLogic cargo mat.
I just bought one for my '06 Limited. I thought about the Xtreme cargo mat that Toyota is also pushing, but my #1 problem with the cargo area is with things sliding around, and I read in other posts that the Xtreme doesn't completely solve that problem.
I think the velcro bottom on the cargo blocks is a neat idea. What's really interesting is that the velcro sticks to the CargoLogic mat and to many other fabrics (like the carpet in the house, where I unpacked the box), but it does NOT stick to normal carpet floor mats. It would stick to the material in the cargo area without any mat, but I don't think that fabric is strong enough to beat up repeatedly!
Here's what it looks like in stone, no 3rd row seat, with double-decker cargo shelf. It's designed to fit with the shelf down, or it would work under the shelf if it's up. It hangs over the edge by quite a bit if you were to put it on top of the shelf in the up position.