Mine arrived on Monday but I didn’t find the time to install it until today. I am typing on Ryzen right now, upgraded from 11th Gen.
The board came out of the box with bent cooling fins, which I didn’t quite like. One of the problematic things about these hardware kits is you will never be able to prove that it has not been you and your sausage fingers. But I was able to rearrange them with fine pliers “like new”.
I combined the board with 2x16G Crucial 5600 which seems to work just great even though it is not on the official compat list.
After the board change the Arch linux boot loader on my SSD was no longer able to properly start until I reinstalled it from a usb live system.
In normal desktop mode everything seems to be nicely quiet and fast. Games definitely run a lot better. Unfortunately, general system stability seems to be the price to pay for the time being. When changing displays on KDE, leaving fullscreen applications or basically doing anything about desktop size or resolution, 3 out of 4 times big white graphical artifacts begin to cover the display and render everything pretty unusable. The same even with compositing switched off. With my 4k monitor connected on an external dock, the builtin display also randomly switches off its backlight every when and then. All of these were no-brainers with the Intel board and everything just worked for weeks without reboot.
I suspect, for my type of use, I would have fared better with the 13th Gen upgrade but I like AMD for being not Intel and I was thrilled by the thought of being able to run Cyberpunk or GTA on that thing 
- even though I probably won’t find the time for that in reality very often…
When tasked with graphics-intensive loads, the system gets noisy pretty fast - and I would also dare to say, it ‘wooshes’ even louder than my old Intel 11th gen board. Which isn’t much of a surprise given the performance and the form factor but since some reviews wrote about the Ryzen board being quieter even under load, I can’t really confirm that one.
I am still thrilled by the performance in this sleek body but really hope that stuff will get more stable really fast. Because after all is said and done, it’s my work machine and for being that, it has to work 