Hi Eric
Had a listen to the Demos and was very disappointed, however I have not heard the Tyros 2 for a couple of months so I dug out some demos of it just to compare, and my opinion remained the same.
All the demos to my ears (Particularly the first 2) sound like Electric Pianos rather then Acoustic, with the stock Tyros 2 Acoustic Pianos being far superior.
As a second test I compared them with recordings of a Real Piano and again my opinion remained the same.
Conclusion; As Electric Pianos they are great, as Acoustic Pianos they are no where close.
Better luck next time

Bill