I was using the Kinesis Advantage 2 (KA2) for the longest while 8+ years now, and then recently upgraded to the Kinesis Advantage 360 and the KA2 was still hands down the best keyboard that I used. I still switch between the KA2 and KA360 but the KA360 is as mentioned plagued with so many issues, from the bluetooth connection issues all the way to setting the keymap using the ZMK software. I would still recommend the KA2 for most users and also the best bang for the buck if you can get one used or refurbished. The split also doesn't make as big of a difference as it seemed at least from my proportions.