Note: Currently not a Hubitat user, but eventually
I'm starting out with new switching in our house, and we're debating on these two echo systems.
What's the community's opinion n these two?
My "hub" right now is Google Assistant (both of these work with GA out of the box) with a min-configured SmartThings and HassIO. I'm leaning towards getting a Hubitat eventually.
Background on why these two: we're looking for dimmers that have physical +/- buttons, with a modern design. I've gone through Inovelli, Insteon, Lutron, GE, and even WeMo. Nobody has smart dimmers that maintain physical +/- buttons and modern in design. I cannot find any Zigbee or Z-Wave Plus devices that meet these two base criterias.
Which leads me to Kasa or Smart Life/Tuya. TP-Link's dimmer has physical +/- buttons. And Smart Life is an ecosystem filled with all sorts of third party vendor harder that do also retain a physical +/- button.
Now, I'm trying to decide which ecosystem to invest into: Kasa or Smart Life.
I'm honestly leaning towards Smart Life/Tuya, since it's a back-end ecosystem with a plethora third party hardware. Kasa would lock me into TP-Link. But, I really want the insight of the Hubitat community to make sure I'm not shooting myself in the foot later down the road.
 It's pretty ugly, to be honest. The switch is complex at first glance. Not anywhere near modern in design.
 Uses a "press-and-hold" functionality which isn't immediately apparent when looking at it -- a UX failure on GE's part.