I've done it but I'm going to change back. It's probably because I'm just a little autistic in that I don't like change but as far as I can see Windows 11 is change for changes sake. It has nice little rounded corners to things, it has some new noises but...
Some annoyances (at least for me):
It's removed a wallpaper I loved and can't find again.
The task bar won't appear on my second monitor no matter who's instructions I follow.
The start button is in the middle (although it can be changed to the left).
The action centre is rubbish now and half the things that were in it have now gone, hidden somewhere in the netherworld.
Right-clicking in file explorer doesn't give you all the options (like create a new folder), you have to click again on 'show more options' to end up with an exact copy of what is already on Windows 10.
You have to disable focus assist or it starts to not show you things that previously you would see.
On the upside:
Cortana has largely disappeared unless you want it back.
Er, can't think of anything else.
If someone new to PC's has come into Windows 11 as a new operating system they will probably be quite happy, but for now, it's not for me.
Edit: I have changed back in just a few minutes after I wrote the above. It's very quick and everything I missed has returned including my wallpaper and the task bar on the second monitor.
Try Windows 11 if you like, the change back is really quick if you find you don't like it. I know I'll change eventually, just not for a few more months.