Don,
The Audio drums were amazing and were what impressed me the most. Smooth seamless transitions through all Variations and Fills.
I'd rather not give any other specific personal opinions at least until the instruments are available to the public, as some here may feel that I might be tad biased.

I'm sure Frankie (
http://www.AudioworksCT.com ) and George Kaye will be able to add more once they hear them in person.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.