The Sebo DUO looks pretty much like the industry standard for power agitation. The Envirodri or even HOST obviously seems better, probably in view of its weight, but in any case I expect the manufacturer markets these exclusively as a dry clean machine. Me, well I'll stick to the push bike (the agitation brush), since not only is it a lot cheaper, but you control the effort to avoid any hazards (loop pile ?).
Pete (JS2)