I have been doing lots of research on these 3 models of Rotovacs. I would like some input from people who have been using them. I have read good and bad on the 360i. I have read the Powerwand is best at cleaning etc.... DHX is good at getting in tighter spots than the Powerwand. Seems to me that the 360i cleans the quickest of all three based on videos I have seen. For the Powerwand and DHX to only clean 3'x3' squares seems really slow. Is that how you really have to do it with the Powerwand and DHX? Would take forever to do a whole house it seems. Any and all input in comparing these 3 units would be greatly appreciated. I basically a dedicated Hard Surface company but I get lots of requests from my estatic customers to do there carpets so I guess it is time to have carpet stuff too. Not too shot in the but about a normal wand. Last thing I want to do is clean a color seal 1000 sq ft of tile all day and then have to huff a wand on there carpet. Seems like Powerwand is as smooth as vacuuming, no?