That's why I asked about the speakers. The speaker and the instrument are the two most important parts of the tone.
I really, really dislike the Roland KC amps. Terrible tone, terrible response, almost everything is bad about it. I mean, I _can_ play through it IF I totally mangle the tone knobs but they are band..... as in the worse to me.
The only piano on the Motif I really liked was the newest XF8 - it had a very good piano. I love the S90ES piano as well. The rest of the motif line - I can deal with it, but I don't like the piano sounds. Heck, I'm not in love with my Kronos pianos either. Although I realize the Kross piano is inferior, for some odd reason it is completely playable on a gig and I have fun with it.
All in all, I like the PX-5S piano - the EP are still in judgement mode! I still need to work on the strings as well..... rrrrrr!