Yes man. I was using a 2010 Mac Pro before that, so an almost 14 years older machine, and I didn't even really feel the change that much. The problem: The Mac Pro is worth 500 €, the Mini I paid almost 4000 € for it. On top of that the old Apple display from 2011 wasn't compatible anymore (1,200€ display by the way), so I spent another 1200+€ on a second hand Studio Display.
At that price, I expected more. Even if it's just a MacOS issue like some say.
But it IS a pleasure to work with it. It's still fast, it's clean, I like the new OS (except the many glitches and bugs it has). So I can say it's usable. And macOS has many new great features. But for that price, I expected much more.