To be honest, I have a double impression, the assembly is good, the software is understandable, but it hurts a little for me and the wire is a bit thick! Not mine in short, 5 mice I change everything is not mine) Different pros: The assembly is good, there is no backlash, the wheel seems to be fine, the right click and left click work as it should, the sensor is on top, a good mouse. BUT! Got cons: A hard, thick cable without a braid is one, the second is too small, like g 300 . My hand is 18 cm and my hand is medium, when gripping with my palm it’s not at all comfortable! This is a big minus for me!