This mouse is really very good to accompany a laptop (weight, grip, responsiveness, variety of surface types) and it works perfectly ... for a year or less. I bought a first and after a year the right-click was causing double clicks, more and more often (which in some cases can cause absolutely undesirable results) to do longer than that. So I reported the problem to which Logitech has replaced me without fuss (good point for them). Alas, the second did not wait six months to begin to have the same symptom. There is therefore clearly a design problem that article and, sorry sir Logitech, I do not have 50 dollars to spend every 6 or 12 months for a mouse. So removed from the list, I move on.
