I use it to do things at the same time as other things. I can add something to the shopping list when I’m cooking or turn on the fan when I’m getting ready for bed without stopping what I’m doing to click buttons. I find that it’s really good for things that can’t easily be automated but you also can’t (or don’t want to) put on a physical button.

I actually use Alexa as I haven’t had time to investigate HA voice control but the principle is the same.