Summary: I liked the feel of the mouse, but it wouldn't track correctly on any surface I tried. This seems to be a consistent problem with optical mice. I would recommend picking up a laser mouse instead.
Summary: This mouse is more comfortable in my left hand, honestly if I didn't have the buttons to indicate that it is a right handed mouse I would have sworn that I had gotten the left handed version of this mouse, It's absolutly terrible. The scroll wheel is placed to far back on the mouse to be used and the Dpi button are impossilbe to reach in game or really even out of game, It's to light, the grip may as well not even be there and it's not even an adequate replacement for...
Pros: It works as a mouse
Cons: terrible ergonomics that renders the product completely useless to me
Summary: As a professional programmer running 3 laptops and 2 desktops I have been through a few mice, and a few have accompanied me around the world. I went through a phase of buying el-cheapo mice from various online vendors only to have them fall apart, cables fatigue and so forth and so I thought I would invest in 3 of these beauties since the reviews were quite glowing. Comfort is fine, ergonomics fine, resolution fine and the change in modes gives very decent response.
Summary: I recently purchased a new gaming PC and after reading the reviews here I decided to buy the M6900 gaming mouse to go with it - what a mistake! The mouse is very light and feels flimsy, worse still Windows only recognises it as a standard 2-button mouse when you first plug it in. I went on the internet and downloaded the G-Mouse software (I couldn't find a specific mouse driver).
Summary: Leider war die linke Maustase schon bei Lieferung defekt. Da braucht man nicht viel schreiben. Meine alte Logitech hält seit 10 Jahren und macht keine Probleme. Jetzt warte ich mal auf den Ersatz....
Summary: Bloss Finger weg von dieser Maus. Bereits defekt ab Werk. Durch Google konnte ich rausfinden dass die M6900 Serie fehlerhaft Produziert wird. Firmwares etc bringen nichts. Wenn man Glück hat erwischt man eins welches funktioniert. Ansonsten kann man die Maus direkt in den Müll kloppen. Würde es funktionieren wäre P/L Verhältniss echt spitze. Gut verarbeitet und optisch ansprechend.