It indeed looked like an interesting sequencer at first, and looking at some videos, the user interface/workflow doesn't quite look appealing to me.
-- XODES
You noticed that too, hm? For one thing, the video I saw of it made it seem like it behaves something like one of those products from Roland's stagnation periods (mid-90s-ish). Plus, if Korg was on the ball here, they SHOULD HAVE made a reissue of the ARP 1604 sequencer to pair with the KARP 2600 and/or Odyssey (and a bunch of other things besides...similar to the 2600, the 1604 is ANOTHER highly-coveted ARP device). I guess they were busy budgeting for goofy-colored paint for the MS-20, or maybe they DID create one and then lost it in the same closet where they keep the KR-55 Pro's missing sync connections.