I have used a wide variety of mouses and keyboards and done many different things. This Sharkoon/Rush mouse I have used for gaming.
This isn't your typical optical type, it is a laser mouse. What that means is that there is a greater amount of precision in your movements and it feels amazingly responsive. First of all you will be taken by the bulky look the mouse, however this can be deceiving as it is actually very comfortable to hold and it is weighted beautifully.
Your palm will rest perfectly on the mosues accentuated shape and you will feel as though it is an extension of your hand when you use it for long periods. The wheel acts as a scroller as well as a button allowing you to use it for various game related activities; changing weapons for example.
There is an additional button aside from the 2 left and right making a toal of 5. Clicks are sharp, responsive but beautifully designed to make a soft sound; not like many Logitech ones which have a sharp annoying click.
What makes this a good gaming mouse is its ability to change the resolution and thus altering how sensitive it is. Along with these, there is the option to have up to 4 speed settings. What this means overall is that you can alter sensitivity with the mouse for various weapons and games - without the need to alter windows or game profiles. There is also an led light that indicates the various speed settings.
One of the best features of this mouse is actually the fact that you can use it straight out of the box without needing to install additional drivers - something you need to do with Razer mouses for example. Being wired you also needn't worry about batteries. The cable is long enough though and the package also includes PS/2 USB converter for people who have older machines.
However, this isn't the best in the class for the price as it retails around £29.99 - Rush Fireglider which retails at around £22.99 is quite probably better but it isn't as comfortable as this one.