The mouse makes a good impression processed. The keys have a good pressure point and click can be pleasant. As auxiliary keys there are a Mausradcklick, and 3 buttons on the left (2x thumb buttons, 1x forefinger key) and a DPI switch 1000-1600-2400-3200-5500 DPI). Each DPI switch is indicated by a color change of the LED. The thumb buttons are standard with front / back is, the assignment of the additional index finger button I could not figure out.
The mouse has a very good ergonomics medium to large hands she offers enough space and shelves. The thumb is placed on smooth and ring finger and little finger are good in an ergonomically shaped hollow.
What I miss the top rating is a gaming software with which you can choose the keyboard layout for various games. This I could neither on the packaging or on the Internet search found.
For 15 euros, the mouse is good for as a normal office mouse in my opinion. It is namely well in your hand and glides well. For gaming however, you also need a software, which is why I can not recommend for gaming use.