The other day, Blender’s official guru pointed out that Filmic Blender breaks the Multiply mode in the RGB Mix shader node. That’s a showstopper for me. I have too many Cycles shaders that use Multiply to incorporate procedural textures into a shader node tree. The guru says use add instead, but that washes the darks out completely, it looks like ambient occlusion in Add mode, giving everything a flat appearance.