Those aren't the worse mice they ever made, this is.
They wanted a clean aesthetic with no lines around the buttons, so the entire thing is a touch sensitive button which you constantly click by accident because any pressure anywhere on the front of the mouse activates it.
How does it know which button you want? It's touch sensitive. So you have to only have the correct finger on whichever button you want to use. The other one just has to kinda hover painfully. Whenever you *don't* want to click anything you have to shuffle it around with the heel of your palm.
That dot in the middle is the scrollwheel/trackball. It has almost no resistance so a strong breeze sets it off. You end up constantly activating it by accident, just like the buttons.
I used that mouse for around a week before I started bringing my own to class. It's practically designed for wrist strain/fatigue.