The Apple wired mighty mouse is definitely one of the best mice i have used coming a close second to the Logitech MX revolution which has to be the best mouse to use in the windows world but osx is a totally different world, As you would expect the mighty mouse works fantastically with osx. The design is a one piece shell some love it some hate personally i really like it, the mouse has a small scroll ball which i enjoy using more then a scroll wheel. The scroll ball also acts as a third mouse button and is pre set to bring up dashboard in osx, There is also a button on each side of the mouse and with a gentle squeeze of the buttons it will activate expose. Most of the mouse buttons can be configured to do a number of tasks by going to system preferences and then mouse and keyboard. one thing i love about the mighty mouse is the way it feels in the hand its so comfortable to use were as some generic mice feel a lot bigger in hand, One little niggle i have with this mouse is the secondary click, because it is touch sensitive i find my self having to lift up my index finger off the mouse shell to activate the secondary click, Its not a real problem its just one of those things you need to learn if your switching from the windows world, All in all i really do enjoy using the mighty mouse and if your using mac osx i would definitely recommend the mighty mouse. One of the best mice i have used in a very long time.