I have been using the mouse for a little over a year, I chose a mouse with a high DPI sensitivity, but the glue began to come out pretty quickly, and the software completely disappointed me right away. I hoped that this mouse would be better than the A4, but it turns out that cheaper mice are better both in software and in quality. The mechanics are working well so far, I wonder how long the wheel will last, whether it will begin to slip over time. If you want to look at premium brands, then bypass this one, and if you want price-quality, then you can take cheaper options that will be at least no worse.