For me the biggest pro is the individual outs, because I like using per-track external effects! This is the feature that I most wish was also available on the non-Keys Digitone, but I can see how they fit into the story of the DNK being a great live performance instrument. On the other hand, if you’re using OB then the regular DN doesn’t need them since you’re probably applying your effects in the DAW.
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It’s amazing.
I’ve gone into it in detail in other threads, but that’s my opinion of it. 
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