The ball is not fixed at all. Someone is annoying, but in my opinion, the cleaning of the insides is faster. I work in AutoCAD and office applications. The size of the ball and the positioning accuracy are sufficient for the job. There is a video on YouTube from a 3D designer, he also works quite successfully in Maya on this one. The price tag is clearly too high, but this is the trouble with all trackballs.
Enhanced Logitech G13 Programmable Gameboard featuring LCD Display
39 Review
Renewed Wacom Intuos Pro Medium Creative Pen Tablet PTH660 - Shop Now!
33 Review
Logitech Wireless Trackball M570 Renewed
58 Review
Smartphone Samsung Galaxy S21 Ultra 5G 12/256 GB RU, Dual: nano SIM eSIM, black phantom
34 Review