I had the opportunity of playing the PA1X Pro for half an hour (found one by chance in a music store in Lisbon) in a brief holiday trip to the south of Portugal. It was a buggy unit, and it took us several tries to set it on without software crashes.

Anyway I confirm JMPCPA's remarks. The most pleasant thing about this keyboard is the key action: the best that I ever experienced in an arranger. I found one or two amazing guitar sounds (acoustic) that seemed to me (even) more realistic than on the Tyros. I didn't try all the guitars, but kept the impression, that the Tyros has a wider variety of excellent guitars. As others observe, the piano sound is weak, although I was not using a top quality PA (Roland KC 350). There are excellent styles for acoustic music (jazz, bossanova,..), but the chord recognition in not as good as on the Yamaha, as Scott points out. Although there are very good styles on the Korg, overall, they seem less homogeneous than on the Tyros (that I own). By "less homogeneous", I mean a less achieved connection between the several variations of a style, and that includes the fills. I was surprised that I did like the touch screen, although it requires some adjusting time to the right pressure one needs to apply to the screen to navigate through the menus.

-- José.