After unpacking plugged the recipient mouse the latest drivers for Logitech pulled directly. A CD was not missing, so I have at least always the latest drivers. The mouse is great in your hand! Slightly heavier than my predecessor MX518 mouse, but a pleasant weight!
Then it went to the thing to occupy the key. Granted the first attempt at World of Warcraft went (except for the 4 thumb buttons) something in the pants. That's what I expected but also to the other recessions. So just googled and with the solution I can live. First, you should select the pre-stored profile "Gaming" in Setpoint. In the game, I have simply created me a bar via addon Dominos and draufgepackt the functions that you want to take my mouse afterwards. A key on the keyboard is assigned for each field. Then you had to assign each click of the button on the keyboard, only the setpoint with the Macro Manager.
Battery Life: A long-term test was not possible to say exactly how long the battery lasts exactly. But the option, at any time be able to plug in the charger, you have virtually no failures! That should be too stiff cable, I can not confirm.
Conclusion: My MX518 was all right, because you knew what you had. But this mouse is the best that I've ever owned, and so far their money absolutely worth it!