Been playing around with AI photo enhancers, some very impressive results. Works superbly around 8 out of 10 times (the other two you get a slightly weird plasticky look). Enhanced some photos (personal and fandom ones) really nicely, including some FA ones.
The one in my thumbnail for instance, which was quite small and even when printed A4 has a fuzzy quality to it. Managed to enhance it to the extent of it being suitable for a 60cmx90cm poster, and looks amazing.
I'm very impressed.