Will admit, despite having 2, I didn't know they recorded things.
I use mine:
To play radio
To play podcasts
To play music
To play audiobooks
To play white noise/ambient sounds
To tell me the weather
To tell me information about my commute
Remind me of whats on my calendar
As a bedside alarm clock
Turn lights on and off by voice command
Set reminders and timers
Add things to to-do and shopping lists
Order things quickly as I remember
I find that it is all by voice command so so useful. Allows me to multitask and whilst initially I thought voice command lights were just the height of laziness now I use them all the time. I love how everything is all synced together automatically. If I owned my own house and was a basquillionairre then I'd have it all fully smart connected up and voice controlled, video doorbell, locks, windows, curtains, lights, heating, the lot. It's one of those things that the more you put into it in terms of programming etc, the more you get out of it.