For one: modifying existing images in interesting ways ... adding characters, removing elements, altering or enhancing certain features, creating layers, and so on. Things that would take a while on Photoshop, done almost instantly. Really unlocks the imagination.

For me: I've only tried using it seriously a few times but my experience is that you have to juggle carefully when to start a fresh session. It can get really anchored on earlier versions of images. It was interesting balancing iteration and from-scratch prompt refinement.

I gave it an image of my crappy art and asked what steps I could take to make it look better. It gave me specific advice like varying the line widths and how to use this on specific parts of the character. It also pointed out that the shading in my piece was inconsistent and did not reflect the 3d form I was representing and again gave me specific fixes I could implement. I asked for it to give me an updated version of the piece with all of its advice implemented and it did so. I was pretty shocked at all of this.