I'm fed up with SmartThings and looking for advice on alternatives

HomeKit has continue to advance significantly, both in the devices available and in the complexity of rules supported.

And if you’re technical, you can also set up a separate server to run homebridge and bring in all kinds of additional devices, including smartthings:

[RELEASE] Homebridge SmartThings v2.0

But even without that it’s just become a very solid, reliable, local platform. :sunglasses: