[huebomont]

They're very useful for very limited things - "Set a timer for 30 minutes" or "Wake me up at 8am" is easier than doing that yourself. Even dictating a short text in a pinch is nice. Think "in the kitchen" with wet or dirty hands.

[thecosas]

I use this in the same way for location based reminders ie. "...when I leave work" or "...when I get home"