Took it for a spin and here are my thoughts, if you wish to consider.
It's extremely slow feature (compute heavy) still leaving some noise. Takes extra attention (observation & knowledge, thinking about solution, settings...) so in cases alike I prefer Intel's OIDN to solve such issues in final render (or to composite in post), thus I'd rather see updated OIDN to last version ;)
But, may this feature become standard part of Corona, I'd prefer to see and set it in Camera (tag) under DOF.
Finally, I wonder (rhetorically), is development of such perks worth it, since there's so many other stuff to fix and make better, faster, more convenient...
... What happened with "effortless UX" principle.
Anyways, have a good weekend.