For ultra lightweight portability (gigability), excellent sounds, great features, and dollar value, I continue to stand behind the PSR2000 as the BEST keyboard choice currently out there. Many of its reported OS flaws (bugs?) actually work to my advantage. I'll admit the keys are a bit light & flimsy, but (to me) its worth the tradeoff. All other pro arranger boards are 'at least' 10 lbs heavier. - Scott