When compared to the ECO500, which it replaced, this mouse is inferior in terms of convenience; nevertheless, in terms of reaction, it is superior by a factor of two to three times. Because I hadn't used a wired one in such a long time, I had forgotten how frustrating it can be to deal with one. becoming caught under the keyboard for an indefinite amount of time or even getting jammed in a position where it won't hit. Some pros: Design. Possibilities. Response (I actually started to fire more precisely, or more correctly, follow the adversary). Macro support. The mouse does not get along very well with my right hand, but it does OK with my left. This is one of the mice's drawbacks. Curve and software that is difficult to understand. Although you are capable of figuring it out, you should expect that it will not come immediately.