As an acoustic piano (7 ft Steinway B Grand) owner & keyboardist as well, I find the Tyros' synth action & its 'slightly smaller' key size just fine. Having also owned a PSR2000, appeciate the substantial improvement in key feel. The PSR2000's keys, in my opinion, felt rather spongy. The Tyros' quicker action feels a lot more responsive. The playing style & keyboard technique used when playing an arranger, traditional synth, accordion, organ, and acoustic piano are each entirely different. Once you accept this fact, the ability to learn to play each of them becomes a lot easier. - Scott