I actually bought......
A tandem air model when the first ones came out from Kramer's. It did not hold up well at all and was expensive even then. Had trouble with the switch for the brush roll, hose suction through the tools wasn't as great as it should have been, and back then it seemed top heavy. I also had to go over the same area several times.
With that said, Tom Gasko not too long ago said that when they first came out they did have problems, but that was addressed pretty soon by Tacony. I actually did think about buying a new one instead of the Symmetry, due to the easy bag change, which they had back when they first came out, now they have made the bag change easier again. I get Consumer Reports and they rated the airflow with tool use as fair on the Tandem Air Machines and Very Good on Carpet,
excellent on bare floors, noise good, emission excellent, handling good, and pet hair excellent. This was for both the Riccar and Symplicity Tandem Airs. Not the new models coming out.
One thing about Consumer Reports, I use it as a reference only, they rated some of my best vacuums very bad......They did not rate the Symmetry in their report. I tested the tool air flow at Kirkwood's on the store model for the Symmetry and found it to be excellent. That made my decision.
If I am not mistaken, Tacony was coming out with a new motor...for the Tandems....
but you would need to verify that for sure.
Anyway that is why I went with the Symmetry. It is a great machine, but I would have waited for the new models, due to the new bag change feature.
PR-21[this post was last edited: 3/12/2014-21:52]