Really liking the new macOS version so far - they’ve thankfully removed the excessive menu icons, an easy win there.
I like the tweak to the “traffic light” window controls and the way the item selected in sidebars now has bold text.
Another minor thing I’ve spotted is the WiFi menu is the Ethernet symbol if the machine has a wired connection, which is handy.
Haven’t noticed any issues or compatibility quirks as yet, but as always my advice to most is to hang off installing any new system until at least .1 or .0.1 - both for time for Apple to address any bugs, but also for time for other companies and developers to sort any issues out from their end of things.