If your used to a particular keyboard OS then all the competition seem much harder to use and to get your head around, however if you look on the various forums you will find that newer users into arrangers always find Korg the hardest & Yamaha the easiest to learn. (The others fall in-between)
Bill
True, Bill...you know the old saying, "There is a wrench to fit every nut."
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.