No, all I have heard are demos of the PA3x - which are OK, but not fantastic. Of course, as you well know, demos are often poorly recorded and do not reflect the instrument quality as they should. Now, I have played older models, and to me, the grand piano voices were marginal at best, the guitars were OK, but not on par with Yamaha, while the strings and brass were underwhelming at best when compared with Yamaha.
All the best,
Gary