I have had a PA50 for about a month now and this far I have been very peased with it. Only thing I can't praise it about is that it has so many useless styles for my taste, too few rock and pop 6/8 and there could be some more good moderate pop styles. But there's many user made styles downloadable on the net so it shouldn't be a big problem.

It has so good sounds that it's very fun to play it even without the accompaniment. When I now come to think about it, I haven't used the styles for a week and I have played almost every day.

PA50 is the most advanced and expensive arranger I have played for a long time so I can't say anything about Pa1X but it should be much better, Korg couldn't release 3-4 times more expensive model which has the same quality sounds and styles than in their cheaper model. I wish I some day get a chance to test Pa1X.