4 years has been serving me faithfully, I bought it on advice, I still get pleasure, the task was to fit comfortably in my hand, there were additional buttons for the microphone, so that in games I don’t press the button on the keyboard, but on the mouse so that the wire does not break , after 4 years, nothing was erased, not a wheel, not a button, I don’t use the program, but who needs it, you can use it, sat comfortably in your hand right away, but after a simple logitech, it seemed weighty for a woman not a mouse, but a dream to play, everything is convenient to work. If they are still selling, I advise you to buy. I bought it, the box was whole, the original all the signs are in place.