I'm surprised by everyone who says they don't use or like Siri. I use it EVERY day for things like...
"Call Jennifer Collins, mobile."
"Set timer for 15 minutes."
"Fast food near me."
"Search web for Tesla Model S."
"What's the weather like tomorrow?"
I also have the "Raise to Speak" feature turned on (Settings/General/Siri) so I can just raise the phone to my ear with a deliberate gesture and Siri is activated.