This mouse truly is the best I have ever owned. After becoming infuriated with Apple's Mighty Mouse that shipped with my iMac, I will never go back to using it again.

The mouse feels and looks incredibly, mainly because it has been made from high quality materials. It works well on almost any surface, (even glass), and visually improves the look of your desk or workspace.

This mouse has yet to fail me, with an annual swap of 2 x AA batteries, it is incredibly low maintenance. A small indicator alerts you as to when the batteries need changing, or you can look at the software supplied which will tell you how much longer your batteries will last.

The feel of the mouse in your hand is very comfortable, and feels very natural, however, if your are left handed, the mouse won't be unusable, but it won't be as comfortable. All of the buttons are positioned for use with your right hand, but they are very well placed if you are right handed. The scroll wheel is very good, and has 2 settings. One of which give it the traditional click roll, and the second setting allows the scroll wheel to scroll freely with little resistance.

The side buttons can be assigned to perform many different functions through the Logitech software, however, the top button can be slightly annoying at times as it can easily be accidentally clicked.

The mouse is perfect for most uses, for gaming, the tracking speed can be increased, as well as pointer acceleration.

Overall, this is a superior mouse, and although the initial price may be steep you will find it hard to find a better product that will last as long.