After only 200,000 clicks the button is already broke to increase the DPI. But since I now no longer bothers me the games not so I will not do that to me the exchange because I'm already very disappointed.
I'm absolutely care about my stuff.
Actually I would not give right 1 stars because it could be so simple bad luck but the internet is full of people like the report. Apparently Logitech did not want to build another long-distance runner.