I have gone through several mice recently, even though I mostly use a trackball. I started with a wireless mouse, but became annoyed when it constantly failed to respond or needed batteries. Then I used the laser mouse that came with my Dell and it worked well. It even had a DPI adjustment button. But I just loved reading about and seeing the R.A.T. 7. It is so unorthodox, but surprisingly easy to use. It is very customizable, from the two sides, to the length and height of the back, to the amount of weight on it (there are several small weights that you can remove or keep until the mouse feels comfortable). The only thing that took me a few minutes to find was the tool included that you use to unscrew some screws to change things. It is actually on the end of a knob that sticks out the back of the mouse. Once you unscrew it (which also lets you get to the weights) you use the opposite side from the knob to unscrew screws. The mouse has a side scroll wheel in addition to the normal scroll wheel between the buttons. You need to download the software from the manufacturer’s web site, but there are many profiles available for different games. All in all I just like looking at the R.A.T. 7 sitting on my desk. Sure it costs more than cheapo mice (I purchased mine on sale from Best Buy) but you can’t beat the looks and the options for it. Highly recommended for gamers.