I have the older 5K iMac with the wireless keyboard. I have had some issues with it, but mainly with the mouse. Well, today I went into the Apple Store to the Genius bar to try and get some of the issues corrected and them to look at the drivers and what is going wrong. To cut a long story short, after 2 hours they did a mistake and wiped my iMac. As a consolation prize for the fun of having to restore and rebuild everything, they gave me a new Magic 2 Trackpad. It is really nice and works very well. So now my trackpad doesn't match my keyboard that is not a really big thing. I think for the most part I will just end up not using my older Magic Mouse and just use the tablet instead. So one I am trying to figure out if there is any function/feature upgrade from the original wireless keyboard other than it doens't need batteries and you charge it with a lightning cable??