What i like of the interface is how easy accesible all the features are made,.. its by far the best implementation of a touchscreen interface in any keyboard till today.. it breaths ipad quallity in my opinion, which is a very good thing.
If you combine this with (in my opinion) the best overall sound, then its understandable that for many this keyboard is the best there is.
It poroves my long term point that a large touchscreen is the way to go in all possible ways...
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Yamaha Genos, Roland Jupiter 80, Ipad pro.