Sometimes, I put something in the freezer for a quick (30 mins) cooldown. Me being me, I'll forget about it aso soon as I close the freezer. I've lost several beers that way.

Now? "Ok Google...set timer for 30 mins." Much quicker than unlocking, finding the Clock app, and fat-fingering the time widgets. This also works for reminders and a host of other things.

Speech recognition is not a gimmick.