Not at all true!!! It will improve it in EVERY way. I listened to the ensemble section of the latest Kris Nicholson Goes Full Throttle On The Yamaha Genos Compare With PSR-SX Series video converted to MP3 - Just this section alone will GREATLY enhance ANY performance! There is no way I could EVER play that myself, not even if I was a good player which I am not.

Also, better styles with better effects makes ANY performance sound much, much better. I GUARRANTEE that I will sound much better on a Genos than on my S770. Even Peter Baartman will sound much better from an older to an newer unit.

We are playing fully automated arrangers, not pianos with mere styles as ad-ons! Arrangers are not 90% about what you can achieve with your right hand (although it helps) as so many falsely believe - if you are just a little creative and you have a singer you can sound awesome without even so much as touching the right hand section.

Many arranger players can play a piano in a lobby with great results - I would not even casually attempt such as feat as I cannot at all play the piano. But I can make an arranger talk - it is a completely different breed of instrument and not merely for skilled piano players only.

I guess some still think and reason along this train of thought...