Whilst you're here I'd love to get your opinion on the ergonomics of iOS in general.So I'll preface this by first stating two things:
1. I am a software nerd, there is a bunch of ticky tacky bugs in iOS that've been present for some years that drive me nuts.
2. I am physically disabled and largely only have full use of my left arm/hand. My right side is just there to support the things I do with my left hand.
In saying that though my experience is that yes, Camera Control software is finicky at best, especially with light presses and swipes etc. But my issues with it as a disabled person, are 95% hardware i.e. button placement, grip needed, etc.
When using CC, it is very cumbersome for me personally. I basically have to grasp the phone's frame in between the side and CC buttons while taking a picture, thus blocking the viewfinder. If I want to use it, a solution I've found for now is to invert the phone where the CC is on the bottom instead of the top. However, this causes more shakiness which no one wants in their pictures.
Overall, I like the premise and I do believe the software will get better, but for me the button placement and the amount of force needed to actually take a picture is it's biggest albatross right now.
I am of the opinion that they just stretched iOS and called it a day, not once considering a redesign to accomodate modern screen sizes with one handed use. I have two functional hands and find it a pain to use. I can't imagine how inconvenient it must be for people with only one.