Your PA800?

1. Is it as easy to navigate as the PSR?
2. Can you hit registrations on the fly to do meldeys?
3. Do the styles cover enough ground, i.e. big band, ballads, etc.
4. Is the harmonizer user friendly, or do you have to tweek it? I vision using the harmonizer button to do 2 or 3 part without any adjustments?
5. Do the fills have a lot of glitches that make it seem unnatural?

Thanks,
zuki