It's great. It's my 2nd favorite Mario game probably (1st being Mario 64, obviously.)
I don't particularly like the controls. I had some issues doing sideflips and you are forced to use motion controls despite using a Pro Controller, but they're still good. The movement is kinda interesting though and I have seen some pretty sick runs already so I am curious to see how speedruns will play out.
My favorite music track is from Wooded Kingdom.
I have no plans to go back and play it or collect more moons (I ended up with 196.), I don't really see a point in getting any more of them - I feel like I've gotten what I wanted. I went back and played some more after sleeping.
And like Breath of the Wild the game has so many collectibles that it's overwhelming and I don't even know where to begin if I would.
You are weird if you have a Switch and don't get this game.