@Phaserune I like that I can adjust the tenting now, and spacing. I've owned/used the Advantage and Advantage 2 keyboards for a couple of years, and this new one is much more comfortable.
I'm not sure how I feel yet about them doing away with the physical function keys and multimedia keys... I used those quite a bit on the older generations. But this new one does include 4 "general purpose" keys at the center that can be used for anything.