Logitech MX700 here with zero lag. Reciever is only about half a metre from the key/mouse but if it wasn't for the fact that I can't see any wires, I wouldn't have a clue I was using wireless.
There's no way I'll ever, ever go back to a wired solution for either device.
There's no way I'll ever, ever go back to a wired solution for either device.