What is your experience with using AI for Video Game Dev?

So I always have been seeing posts about sprites generation and using AI for video game development. Did not pay attention much because I figured It is probably an easy matter I can tackle whenever I get into it. Today I am realizing it is not that simple. I was wondering what were your discoveries about this? It seems we need to figure out the sprite size/dimensions, we need to be able to "cut" or crop the images we make into the size we want, and fianlly we need to consider having transparency effect.