Yeah, I often wish that render engines would simply emulate perfect dynamics and color grading - on the level of cinematic cameras.
I would honestly imply only two modes: camera dynamic mode and human eye dynamic mode. :)
In Corona, you basically try to get good dynamics by tweaking the compression with filmic highlights and sometimes add a bit of filmic shadows, play with the contrast and exposure.
Juggling those parameters get you quite decent results that don't require much PS tweaking.
Ah, and some of the LUTs included in Corona are also quite handy.
Depending on the light situation, my favorites are: contrast hard, contrast soft, Kim Amland photographic (on lower values like 0.4), Fuji & Portra can be also cool at low values.
But yeah, I'm waiting for that day, when render engines will generate simply perfect, super realistic lighting without any tweaking. :)