I have several KA2s (office, home office, spare) and the 360 Pro (I first had a non-Pro because I prefer wired, but the firmware still had annoying bugs).
+ Variable split is very nice.
+ Higher tenting degrees than the 20 degrees of the KA2.
+ Great firmware (ZMK) out of the box.
+ Really good build quality.
+ User-replaceable battery.
- The Gateron Brown switches are mediocre. They are not to spec and the actuation points are closer to 3mm than 2mm. This makes it much harder to type without bottoming out and doesn't permit the lighter touch you can use with the Browns or Silent Reds in the KA2.
- The two halves always connect through Bluetooth, but sometimes the right half cannot find the left half, especially after flashing. You usually have to power cycle both halves several times to get them to connect again.
- The Pro (in contrast to the non-Pro 360) comes with mediocre ABS keycaps. I replaced them by a Kinesis PBT blank set, but this adds another $50 or so to the already steep price.
- The optional palm rests are too high.
- Cannot be used on your lap.
The keyboard I still love the most is the Kinesis Advantage2 with a KinT controller (for QMK). If the split distance and tenting degree of the KA2 are acceptable, I'd recommend people to buy the KA2. If you do get a 360, I'd recommend you to go through Upgradekeyboards.com and get it with a different switch type.