The advantage atm is to be able to make a render 10'000 x 10'000 without any quality loss a great feature for printing, AI generates the appropriate textures automatically enhancing wanted details for the needs. Sending through a Macro the textures into AI returning and overwrite the previous. this is practical avoiding having to reassign the textures to the model. You need to find a balance as such a texture can reach 150 meg up really fast. Further is to enhance the detail level of a mesh with AI brushing , still working on this ...

So AI in this sample is changing the way of skinning giving a all new experience in your renders, Not talking about Postworking your Image but how the skins are and how they will render

Here is a sample of what happens if I run the texturing through a AI filter command raising some of the details and how Poser will render it increasing the maps to 8k. It naturally depends on your taste how it will result. More realistic, more like a painting, or a comic style, this also can speed up your workflow not having any further needs of  filters or time consuming Postworking on your renders