One big downside: LOADING. It takes a literal 10-15 minutes for the game to fully load EACH time you boot the game. But once you're in, stuff loads pretty quickly - much more quickly than the awful 2020 load times. Also the loading UX is awesome, it basically zooms in on your plane, giving you a real sense of scale before you start flying.

Outside of that initial loading, this was pleasantly better looking and performing than the Steam version of MSFS2020. I have been playing a bunch both docked and undocked. Very fun experience.