When comparing Mad Catz RAT 7 vs Roccat Tyon, the Slant community recommends Roccat Tyon for most people. In the question“What is the best gaming mouse?” Roccat Tyon is ranked 27th while Mad Catz RAT 7 is ranked 37th.
Specs
Ranked in these QuestionsQuestion Ranking
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 Many keys, 1D analog stick, illumination, good sensor

Pro Full Linux support
Roccat has good Linux drivers.
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 No MAC OS drivers available
This is a common con for many gaming mouses. But since the mouse buttons can be bound to direct input events, lack of drivers can be overcome.
Con Functions cut down if not using Roccat keyboard
There are extra features with the Easy-Shift[+] thumb button but a Roccat keyboard has to paired with the mouse to utilize them.
