I love my Pa1XPro.

I also played the Tyros and the PSR9000. I feel more comfortable with the "musicality" of the Pa1XPro. Is that too vague?

I feel like I am playing an instrument with the Pa1XPro; with the TYROS I felt like I was mixing and producing. The Yamaha sounds a bit too "canned" - almost like the end result with the Pa1XPro is to hear a band play a song, and with the TYROS the end result was to hear a CD play it.

I am not trying to slam or put down the Yamaha. I just really, really , really like the Korg.