The “mini keys” are incredibly sucky on the re-release by Korg. I am not a fan of mini keys period, but thought might make an exception with the Korg ARP or affectionately called “The KARP”. It’s not just a matter of the keys being mini keys, they are simply terrible to play riffs when you are a trained keyboardist with thick fingers. The sound is nice, but we decided to not buy and just added a second Moog Sub 37 instead and it was the better choice. Rather have an original ARP as the OP has here.
Let me add that the Korg MS-20 Mini seemed to be a perfect compromise and keys are definitely better on that one. Seemed a daft decision to place mini keys on the KARP…can only hope for a full sized kit as they did with the MS-20.