Too much money (for me), and way too heavy(for most).
Having said that, it is by far the nicest, most realistic Roland piano sound I've heard...and certainly the most versatile by the specs.
Disappointments? Well, it only has PIANO sounds, or am I mistaken?
That means if you want piano layered with strings, the most popular combination, or bass on the left and piano the right as a split, then you will need another instrument, or a module MIDI'd to it.
At that lofty price, at least some strings/pad sounds should have been included.
This seems more likely to be a studio only instrument, unless you've got help moving it...the CP-300 I have is 72 lbs(without a case!) and it is no joy to move.
No doubt this technology will drift down to more manageable and cheaper instruments...it would be nice to see it in a new G-series.
With a decent set of stereo monitors/speakers mounted on top or at least facing you, the effect of playing a "real" piano would be greatly enhanced.
Viewed purely as just an ultra realistic digital piano? Definitely a winner.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.