My experience of using it for just 20 minutes at the Apple Store was a bit frustrating honestly. Mostly, because I didn’t read the guide for how it is to be used so I really struggled with the controls navigation. Also my fingers are a bit fat for the thin and sleek camera control but I think if I spent more time with it, I might start liking it!
Excited to see where Apple goes ahead with this and whether it will become a full blown DSLR shutter button as you said 🙂