I was against this thing from the start, because I cannot stand badly-acted infomercials where someone pretends they cannot manipulate a simple device. But before I say any more, check this thing out:
While I am drawn to things that fold up small and then expand, my kneejerk reaction was: No way is this thing suitable for a workbench. First off there's no shelf (as with a plastic sawhorse) on which to lay your circular saw between cuts, and you cannot do that thing where you raise the blade and rest the circ saw on the floor beneath the material (as with wooden sawhorses), because the crossmembers of this Centipede Sawhorse take up all the space.
My second thought was, the design is not actually space-saving; while the legs fold up to a nice, compact size, the design is dependent upon a large surface, like a 4×8 sheet, resting atop the multiple supports to create stability. And if you have to haul a 4×8 sheet around anyway, two plastic sawhorses don't take up much additional space.
Looking past my kneejerk, I feel this expanding design has merit for something—but I can't figure out what. You can't beat the small-to-large ratio of the device, and it's easy to see it provides more even support across a 4×8 surface than two sawhorses would. And I wonder if all of those metal rods would absorb and mitigate the vibration from a power tool. So I ask you: Am I being too harsh on this thing? Would you ever consider using this as a workbench? And are there any applications you can think of where this kind of base would be more useful than the conventional alternatives?