OK, no edit again, but it seems to me that with most modern music the built in styles are fine, but as soon as you really want to do a swing, jazz or even foxtrot type of thing the arranger sounds so canned with those repitious backgrounds.

As far as comping with your left hand with the arranger going, I've never heard anyone get it to sound exactly like a regular piano player would again because of the compomise you have to make playing chords with a certain voicing and having to hit the chord pretty close to on the beat so the bass and guitar are correct. Rather unnatural sounding to me.

It's the state of the art though. I've never heard one of them do what I'd really like it to do in the older styles. So, I always tried to make up for that with right hand things.

I actually believe that's why we all, some more than others, are changing keyboards as much as they are. We get bored with the best of the best arrangers and look for new styles to make it fresh, then we get bored with those styles and on and on. IMHO