I think most of it is sort of ugly, especially the photo realistic stuff and the Pixar-style stuff.
However, the anime stuff sometimes looks half-decent. I wonder if it's because that kind of AI has been in development longer. I remember using stuff like Artbreeder and Waifu Lab long before the AI craze blew up. Tho, I don't think people should be using any of it to sell a product. I've seen people try to use AI for their comics and it looks like a disjointed mess. A lot of errors that would have been easily fixed if an artist was drawing it. I also think that there should also be transparency of where that anime image library is pulling from. Because how it is now, it's just theft.