Other than a few minor adjustments, I cannot see a reason NOT to buy the S-901. It's a great keyboard, it's lightweight, it's extremely powerful and will provide you with excellent performances.

Good Luck,

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)