Actually.....
Yes, I am somewhat biased..
But, in all honesty, I don't think the "Z" is all *that* bad.
I do think that the marketing campaign behind it is somewhat hokey, but... it's an attention getter--which, of course, marketing is all about.
It's definitely something VERY different, and just like I'm sure the Dial-A-Matic was looked at as being somewhat alien in 1963, this is something completely new--designed from the ground up... Not a regurgitated Elite or WindTunnel.
It does clean very well. The "self-cleaning" filter certainly makes it competition for the Dyson, as it theoretically shouldn't loose suction if the filter isn't going to keep its dirt for very long. It has a wooden brushroll, a "quiet drive" belt, electronic height adjustment, an obscenely long hose, and the TOL model has LED headlights.
When we first got them at work, I took one home and gave it a run. (follow link to my photos)
My biggest complaints would be that it is pretty heavy, and the dirt cup is rather small. But, something we figured out is that you can fold it down and extend the telescopic hanle.. then hit the handle release, and vacuum with it in that position. It takes the weight of the cleaner out of your arm.
I applaud Hoover/Maytag/soon to be Whirlpool--whatever company it is, for at least trying to give Dyson a bit of competition, and think up something new and original.
It did get my other half's attention-he thought it was pretty darn interesting, and actually started USING the thing--he could usually *care less* about "me and my vacuums..." (see photo below)
-Fred