One more important thing I want to mention...
It appears that all top arranger keyboards today have at least VERY good to excellent sounds & styles.
That being the case, I personally prefer a keyboard with a more user friendly & intuitive OS (operating system) over a keyboard which may have 'slightly' better sounds/styles. No matter 'how' good the sounds or styles are, if the keyboard's OS gets in the way of "creating music", you will completely LOSE your creative flow and inspiration.
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