Got my Glove80 yesterday š. Still too early for a proper review, but loving it so far. The transition from a Kinesis Advantage is straightforward , the pinky columns feel easier to reach which is a definite improvement.
The Advantage360 does not really improve over the Advantage2, in some respects it's a step forward (variable split/tenting), in other respects it's a step back (tiring switches, Bluetooth connectivity issues), and in many respects it's stuck in a 30 year old design (same key wells, same thumb cluster where I can only reach 2 keys per thumb without weird stretches or moving my hand).
The Glove80 is really a step forward in many aspects --- better key wells, better thumb cluster, better portability, etc. It's a contoured keyboard that takes all the lessons of the Kinesis Advantage and improves over it.