A trackball mouse is much different from a regular mouse. Though there are a lot of advantages of using a trackball mouse over other mouse people don’t want to use it because of slightly different operations. Though this is not that much hard to get used to a trackball mouse. Sometimes people can master it in 2-3 days and sometimes it needs more than 2-3 weeks. When you get used to it you can enjoy the advantages of the trackball mouse.