I’m impressed with it too. Sounds great.
For me, the problem comes about when something doesn’t QUITE work, and there’s absolutely nothing you can do about it. A MIDI guitar mode track can be made to swing a bit even if it’s originally straight 8ths/16ths, you can edit the strum or picking pattern, you don’t have to look up if the style has all the chords you need or worry about how it will deal with non-audioloop chords.
The Ketron sounds killer doing what it does. And if that exactly what you need, you’re gold. If it isn’t exactly what you need, your editing options are limited, but few of us edit in the first place, so doubtless it doesn’t worry many…
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An arranger is just a tool. What matters is what you build with it..!