Montunoman, there are other Korg instruments that use the same keyboard, at varying lengths...your local music store might possibly have one of these in stock for you to try.

The microKORG XL SYNTHESIZER/VOCODER, the microSTATION, the microKEY USB POWERED KEYBOARD should give you a rough idea of how you will get along with the smaller keys.

I have rather large hands and these sized keys took a bit of adjustment for me, but they were manageable. The dynamics, especially on piano voices, aren't the best for more subtle expression while playing.

Ian