I have it.  I really like the sounds, but not the styles or interface as much.  I guess I have been playing Yamaha, and Roland stuff too long.  The touch screen does make the interface easier to use, but I still find the Roland E50 and Yamaha PSR 3000 easier to use.  The funny thing is that if you just look at sounds alone, the PA-500 might be tied with the E50, but I can cover more songs on the PSR3000 than the other two put together.