Beta version don't have gamma/contrast/brightness slider at all and everything is washed out.
I don't know if in final version it will be fixed (Fallout 4, I'm looking at you).

Changes are subtle, but with it game is looking a lot of better. I've made settings for ReShade 1.1.0 + SweetFX 2.0: http://reshade.me/sweetfx#download

I've only changed LUMASHARPEN, LEVELS, VIBRANCE and CURVES so performance impact is almost invisible.

I prefer in-game SMAA mode (It's pretty good for postprocess AA).
If you want FXAA I recommend to change LUMASHARPEN to #define sharp_strength 0.50.

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Download my settings and change the file name to SweetFX.cfg and put it into ReShade folder.
https://sfx.thelazy.net/games/preset/5235/