I'm not deep into it, but I've been trying to get deeper in with Home Assistant. I have several smart plugs, a smart thermostat, some Google Nest products, and even an indoor security camera.

What drove me to home automation, specifically the smart plugs where it all started, was that I live in an apartment. Most of the outlets aren't connected to wall switches. So I'd have my various lamps around where the plugs/attached switches are like behind furniture or other awkward spots to reach to. It got annoying. The smart plugs solved that so I could turn them on/off from my phone.

Next, I started placing them on a schedule. So that when I got home (back when I was working from the office), I could come home to a lit house. Or if I fell asleep on the couch, all the lights will turn off at some point instead of being on all night. Or when I'm out of town, I can play with the lights to simulate someone being home.

Then I got a free Google Nest Mini (similar to an Amazon Echo). Controlling the lights from phone was great, but controlling via voice was even better! Because what if my phone wasn't on me? Or battery dead? How about if I had guests who wanted to turn on/off lights? Now both bedrooms have one, plus the living/dining room. I can control everything from those, by voice.

The thermostat here, though digital, wasn't even programmable. So I replaced it with a smart one, free from the power company. I can even control from my phone (or voice). Now I can schedule heating/cooling. During a trip, I'll leave it outside of my at-home temp range to save money. But on the way back home, like from the airport, I can have it start heating/cooling so that by the time I get home, my apartment is ready for me.

Security camera is obvious. I travel a fair amount, so it's an extra piece of mind.

Altogether, it's about convenience and ease. These all solve or at least mitigate admittedly minor issues, but still, I don't have to worry about them anymore. Some, especially the thermostat, even help me save money. And a couple even provide me with a bit more security (at least I feel that way).