It is a pity that they disappeared from sale and that they were no longer produced, there is no other such mouse and there will not be, all analogues, etc. - this is not the same Some pros: The mouse is excellent, well balanced in weight, the buttons on the side are indispensable for work, it is very convenient that you can swing the wheel left and right. In general, after this mouse I can’t use any other mouse anymore, the price is justified, but there are also shortcomings . Cons below: The declared resource of the buttons is clearly not true, 20 million are not there. The forest, and after it, after a while, the PKM (which is central) starts to stick and double-click after 2 years, I had to solder the buttons to others, Chinese ones, but the sensations are not the same, the buttons are very different, and the original buttons could not be found .