I bought this mouse for my Windows 7 PC, because I was tired of constantly have to rely on cheap products that either go fast or broken after some time refuse to work. This mouse is indeed much more expensive than a standard Microsoft or Logitech mouse, but the investment is worth it, as I've found quickly. The mouse is very good in the hand and responds quickly and accurately to commands. In addition, the scroll ball is just great! This makes scrolling and working with documents a lot of fun. Since this is primarily a mouse that has been designed for Apple Macs, it is under Windows, unfortunately so, that one can not prove all keys functions. That's the only downside. But the basic functions, such as right, left key and Scroll Ball function properly via Plug 'n Play, ie mouse connected to the USB port and you're ready to go without having to install any drivers. The side keys function basically well, but it is only enough for Back and Forward commands in the browser or when browsing photos. Well, I actually do not use the side buttons and am quite happy with the mouse. The often mentioned problem with the dusty scroll ball and the related malfunction, I had so far not yet. However, I use the mouse was not so long. However, I will report it. At present I am with this mouse but very satisfied and would buy again.