When comparing Mad Catz RAT 7 vs Logitech MX518, the Slant community recommends Logitech MX518 for most people. In the question“What is the best gaming mouse?” Logitech MX518 is ranked 11th while Mad Catz RAT 7 is ranked 37th. The most important reason people chose Logitech MX518 is:
There is a built in application switching button that behaves the same as alt+tab.
Specs
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Pros
Pro Reliable; keeps on going through the years
It will still work just as well as the day you bought it.
Pro Incredible flexibility
Many parts of the mouse are adjustable with interchangeable pinkie grips and palm rests to a custom weight system. The mouse is able to literally change its size and weight.
Pro Cordless version available
It also comes in a cordless version, called the RAT 9.
Pro Application switching button
There is a built in application switching button that behaves the same as alt+tab.
Pro On the fly sensitivity switching
There are two buttons above and below the scroll wheel that allow for on the fly sensitivity switching.
Cons
Con Laser (not optical) sensor
Laser sensors are just not that great when compared to optical sensors. Often there is acceleration issues with laser sensors.
Con Expensive for what the internal hardware is
Sadly the components inside of this mouse are pretty cheap, ranging from the switches to the laser sensor. For the price Mad Catz is charging one should expect higher quality components.
Con Forward / back buttons wear easily
The two buttons located on the side of the mouse (sometimes known as the page forward and page back buttons for internet browsers) wear out easily after only a few months of usage. That means that it requires extra force to register a button press, all while receiving no touch (or audible clicking) feedback. Frustrating but the mouse does continue working.
Con Uncomfortable "seam" where your thumb and palm meet
Con Not produced anymore
Logitech MX518 is an old model, that has since been replaced by G400 in 2011, which in turn was replaced by G400s in 2013.