In my experience now and live for many months with the PA800, I can say it can handle absolutely any genre you choose. I do very soft string ballads that fill the room, to really rock hard guitars, to very adequate country (with authentic sound steel pedals) and everything else in between.
It is true that the Korg is limited in stlyes, including 3rd party, but I'd rather use what is available and make them work.
Mine is better than yours.........please, not saying this - I'm just happy that I'm happy for a change - no, thrilled is more the word