I love my “smart” thermostat. Being able to adjust the AC or heat a few degrees when I’m leaving work so my place is the perfect temp when I get home is awesome.

We have old European radiators in this apartment. But you can attach these electric valves to it with radios. So now my home assistant can just turn the knobs when the thermometer notices it's getting too cold or hot. Very old tech combined with smart home automation...

Having my lights automatically controlled is nice. They turn on just before sunset, then I have my lamp in my bedroom turn on just before I head to bed normally so I can get straight into bed and hit a button to make the room dark.

I have a few other things connected to Home Assistant like my 3D printer and an air quality meter just to have a dashboard for how things are in my place. But I have zero interest in appliances being connected to the internet. Especially anything that could be dangerous if it malfunctioned.

You can make it smarter by attaching time delay relay.

I like that I can away from my oven while it's preheating and it will notify me when the preheat is done and being able to turn it off remotely is also nice. I really appreciate my smart lights, if ni other feature than colour changing.