Being able to fully address things like RAW file format, auto/manual settings, and manual focus quickly and easily before you take a photo might mean little or no editing afterwards. The interface is really elegant, so much so that I'm not sure if I'm missing some functionality because I haven't discovered it yet. As I am using it, it's for having lots of control in capture.
Pros:Great camera app to control everything up front
Cons:Can't shoot in square format? I'm not sure…