If it wasn't for the software it would have been 5 stars. I learned to get along with him, but there is a ton of discomfort from this ugliness. Has pros: The sensor is accurate, not buggy. Lots of programmable keys. (but more on that later) The wheel . I don’t even know if it’s a plus or not, but it clicks quite loudly when scrolling, but it’s a pleasant sound, not annoying. Someone will be a minus, but I'm used to it, I'm even ok with it. Ergonomics exclusively for right-handers, the grip is comfortable. HEAVY. For me, this is a plus. I love fat mice. I left all the weights inside. Some cons: Gets dirty. Very. The mouse is regularly dirty. No matter how you clean it, no matter how dry. She will lose her original appearance very quickly, you can believe it. I wash my hands, I don’t eat at the table. It's just the material. And the grooves in the rubber do not help this, but rather make it worse. Soft. This is just obscurantism. There, when you turn on 2 modes, the built-in mouse profile and the one stored on the computer. Every time you turn on the PC, the mode that you selected should turn on. But we are playing a guessing game, when one mode, when the other turns on, only Indian students who wrote this software geek can know. Profiles either switch or not, during the start of the game, also a guessing game. If you assign NUM0-9 to additional. keys they do not work if num lock is turned off on the keyboard, which is generally a piece of nonsense. The wire is thick and heavy, with a sheath that clings to whatever it pleases. And you need to either fix the wire on weight, behind the monitor, in order to avoid this, or leave a large excess so that there are no kinks and the cord does not stumble. The price is a little high in my opinion.