If Siri could do the following reliably (meaning not having to ask again, not having to repeat, having it work 99% of the time) it would be golden:
1. Find my phone via Siri on homepod
2. Set a simple timer
3. Add to a list
4. Send a text message to one of a few contacts
It can and sometimes does do all of those things, but horribly unreliably.