I use this mouse NB now been about six months and am quite satisfied. Although she has on some substrates their problems, but it's really not so tragic. Am I for example on the couch, and used my blanket as a mousepad, so this works einwadfrei. Strangely, caused many a table as more problems - a mousepad is therefore recommended. The cable is not really annoying - it's just simply there. And I personally prefer a wired mouse, when I'm traveling. To move is much more difficult, and if you have the notebook on your lap, the touchpad is anyway useful. In conclusion, that this mouse is good, but nothing special. It works flawlessly and is favorable - but who Logitech mice for his desktop with 10 or more buttons and is used with graphics programs, (demanding) games (eg Shooter) and would like to work like, but should look elsewhere.