"I admire how it's able to transform from, say a hand cart to a wagon etc - but from my point of view, it's a bit of a complex solution to a simple problem. When I (rarely) find myself needing a large cart (of my own), I usually grab a sheet of plywood and screw on some casters. When I'm done, the plywood gets used for some other project, and the casters get put away for the next time."