Regrettably not obtained G400 mice more and certainly not the model MX518, these were probably taken from the targeted range. A G400 the last 30 cost, in my opinion there is this mouse. I have, when she was still available, has presented a G400 and now annoyed for some time much that I did not then also ordered me.
The G402 is fine but there is no improvement to the G400 recognizable, on the contrary,
the biggest complaint I have is the mouse wheel for me!
I have no problem with it when the mouse wheel is easy schwergängier than eg. The G400, but the wheel is not only difficult, but it is even anstrenged order to scroll.
The mouse wheel acts much cheaper and krazt clearly audible.
It feels as if it would not run around and grind or scrape anything.
A great pity, this wheel is acting really very cheap.
By now I've gotten used to the mouse and your mouse wheel, after prolonged use, however, has to move my fingers, because the index finger feels weird after some time by scrolling the mouse wheel on, or you feel the urge to loosen it, as the scroll with this wheel strained.
The weight of the mouse is nice, but looks compared to previous models cheaply.
My hand is not as good as on its predecessors, because the mouse has shrunk in the width. The previous models were much more ergonomic. Possibly, however, this mouse is better for some users, for the previous models were too big, but I dare to doubt.
The accuracy or speed is absolutely comparable with eg. An MX518. At a certain level you simply notice no difference. This is similar to a car with 140 hp with the grade I'm going 200 kmh or a car with 240 hp with the grade I drive 200 kmh. Ultimately, the sensor and everything advertised a clever marketing gimmick.
The additional keys for sensitivity switch or this "super" high speed fusion engine bring absolutely nothing and I do not even know if I have this on or off, because it is absolutely no difference.
Overall, this mouse from Logitec is superior still the Konkurrez and for the price of 40 I paid, absolutely inexpensive.
It is a pity that the successful predecessor will not be continued and meaningful improvement.
I had the choice I'd rather pay for a 45 G400 40 for a G402, but in the meantime I have accepted this mouse and it is in terms of precision and processing, what they expect from Logitec.