[Jedd]

I occasionally try to come back to DarkTable, RawTherapee etc, but similarly for my requirements they feel like overkill, and require much more time than I have to properly understand the underlying theories.

For a simpler interface that gets me (a naive user) half-way decent results pretty quickly, I'll drop back to LightZone. Whole bunch of ready-made presets that combine primitives (sharpness, contrast, saturation, curves etc), and easy to save new presets once you find a combination you like.

[nuclx]

Gonna check it out, thanks for the tip.