The media dock contains various options to display, like volume, clock (stop watch, time & date, etc.), pc info and more. Software side you can also deactivate a few of these in case you're not interested in certain things. The only improvement I'd like to see to this is that those deactivated options are being removed entirely from the wheels overview. On my end I deactivated all but clock, volume and pc info and I still see all icons (to be fair though, it jumps between the 3 and not all available).
From a hardware perspective what I'd like to see changed is that the wheel itself could use a better feel, however that's entirely subjective. It feels a bit weak, I'd like it a bit more clicky. The wheel itself could also use a grippy surface on the sides ideally, maybe a bit of texture. However that would just collect dirt over time or might be hard to clean. This current iteration at least insures that it can be cleaned easily.
It's also a bit close to the upper key row on the keyboard, so the wheel cannot entirely be used comfortably.