Necessary adaptations ...
The first trackball was, frankly, very confusing when you've only used conventional mice, so keep the box in good condition to resell if you can't get used to the new automatisms you'll need to acquire.
Leave yourself some time to see if the mayonnaise finally takes!
With the Logi Options+ software, you can customise the buttons and the speed of the cursor via the ball, but I would have liked to increase the speed of the scroll wheel, but that's not possible at the moment.
I'm 100% in favour of the speed of the ball to scan my 32" easily, but to aim accurately you need to practise, and that's starting to happen ...
Small hands please, size L gloves I am almost short for the top button.
You can't see it on the photo above, but the top of the mouse is tilted to the right, so that's one more oddity for people used to traditional mice.
It's also hard not to have the reflex to move it, so you're going to have to upgrade your primary brain for normal use at work and different use at home!