The mouse does not change, I bought it in January 2022 for 970. and until 2022 it worked fine, but the side buttons stopped working (they died first) and the right button does not respond well (there are double clicks and resetting the button hold), but this is a 5-year-old use of the mouse, all the same old age . and its constant use in battles . and other games where constantly (tautology . I know) the right button is used. Is it worth the money? In 5 years, it paid off completely. Is it worth buying software and is it critical? No, free is enough. It should also be noted that check the quality of the goods on the spot, they can slip a fake, which will fall apart in a couple of months, the software is useless, which I already noted. Oh yes, over time, the coating from the buttons is erased, it's critical or not, decide for yourself, it doesn't bother me. What I see now in the mouse, only the illuminated hand (emblem) has been changed, while everything else is the same as it was.