The much-mentioned problems, which is to have the gamepad in Windows 8.1 (64-bit) (and which are discussed in the Logitech forum), I can not understand. Have normal loaded the drivers on the website and did not have to resort to the Xbox controller. When detecting after installation but the small switch between the shoulder buttons should be on D and you only have to press the logo button in the middle.
The only small thing, for which I would however also deduct only 1/2 or 1/4 star, is the lack of compatibility with the Unifying receivers other products from Logitech. Say: I can not run together with the M510 at the same Nano Receiver gamepad.