Which should be rather obvious if you understand that it's basically a GAN. You have a discriminative model who's objective function is based on Justice Potter's description of porn: I know it when I see it. If you ask what types of errors might emerge from such a formulation I think it becomes rather obvious.

Which isn't to say that the tools aren't useful. But I have to add this fact because many people conflate any criticism with being dismissive of the technology. But technology is about progress, not completion. Gotta balance criticism and optimism. Optimism drives you and criticism directs you.