I've been using it for the third year now. The first thing worth mentioning is double and triple cliques. In shooters, they are, to put it mildly, very so-so. Tried it and didn't like it. It is still more convenient to control the fire with ordinary clicks. I use the rodent more for modeling and surfing. There are no quibbles here at all. There would be more side keys to hang more macros for software (third-party software is used), but these are already nit-picking. Of the most significant qualities, it is worth highlighting the proprietary indestructibility of a4tech, high-quality material and ease of disassembly. Yes Yes. Once a year or two it is better to disassemble and clean it, like any other mouse, and here another pleasant side was revealed: it is very simple and convenient to disassemble. The whole mechanism consists of 3 separate boards, interconnected by connectors with latches, and not by soldering. Plus screws - the usual "Phillips" without intricate slots such as "torx" and the like. The most ideal would be to not hide the two case screws under the large Teflon legs, but apparently due to the very large main board, this was the only available place. Therefore, when removing the rear large legs (the front ones are not needed - there is nothing under them), be careful not to bend them. Teflon is fragile - it will crack, it will cling to the mat. Plus modules of the main buttons and wheels are collapsible. And this means that over time, when the membrane wears out or bends and starts to make double clicks, it can be easily replaced or bent back.