- Send a text while driving, walking with my kids, etc
- Create a reminder with a specific time or place ("Hey Siri, when I get home remind me to take out the trash")
- Resume an Overcast playlist ("Hey Siri, resume Overcast tech playlist")
- Turn on/off lights (I have a couple lamps on HomeKit outlets)
- Get directions
- Set a timer
- Place a call while otherwise using my hands (I have an Apple Watch, which makes this pretty handy)
- Play music / playlist in Apple Music
- Check a sports score
Getting an Apple Watch significantly increased my usage of Siri. It's not perfect, and as I wander around the house doing things (without my phone) the connection sometimes gets tenuous. But a lot of times it is nice to not pull out my phone, and keep using my hands for whatever I was already doing.
I am actually pretty pleased with Siri's functionality to do things for me. I can't speak to the "General Information query" use case, as it has never been compelling for me--however most people say that Siri lags behind other assistants in this area.
More often then not however, I find it infuriating at how bad it is at picking up "Hey Siri"