Excerpt: If you're planning to use this mouse when operating windows, don't go there! It lags far behind, is virtually impossible to point to an exact spot and sometimes freezes completely. I was able to hold out for two days, but I'm ditching mine today.
Summary: This mouse works so much better than my old Mighty Mouse made by Apple. Although you want to check he settings, as this mouse can switch tabs in Safari without much effort and you'll lose any data typed on a website if you move to another tab.