I speedrun Mario Galaxy and these controllers meet my needs perfectly. The notches are great and the precision is just what I need to play Galaxy. I've also played Mario Odyssey casually and I am able to perform all motion control options great.
I highly reccomend these controllers for speedrunning, but I would use the app that comes with it to change the curve. It basically lets you decide when the controller should "lock" into the notches. If you change the first point so it is at .05 at 0% it will lock into the directional notches. Changing the second point so it is .95 at 100% will make your controller lock into the diagonal notches. This greatly helps if your controller input is not matching your notches perfectly.