Well, I've already uninstalled the beta from my system. It's awful. Contrary to what I feared, my system handled it fine. However, akin to what others have said previously, this is a [not including airports] scenery generator.
The airports were pimped to be amazing, even at basic level. They're not. Aircraft are cartoonish and handling is way off target.
The UI is too gamey and whilst eventually decipherable, is just not what serious simmers/FS veterans are used to. Default control/commands are not what we're used to. Night lighting at airports is non-existent.
I was a tester for Flight when that flopped. That almost spent as much time on my HD as this did. Almost.
WX FX seem ok though. Just like previous releases, FS2020 and the like were billed to be the dogs' doodahs and failed to deliver until various updates and 3rd party addons were completed.
I'll be sticking with P3D for a couple of years yet I think.
So glad I never pre-ordered.