I've heard others say this frequently here, but while some general settings can be a sort of "fit-all", you will oftentimes need to take each scene to calculate what works best in each scene. Whereas someone might find .8 works fine for Detail in one scene, another scene might benefit from 1 Detail. Same is especially true for clouds. I never use the Quality number; I use Samples, which depends upon the type of cloud, the lighting, the importance of the clouds to the scene and some extra stuff like if I want rays or not.
Experimentation will lead you to understand these general settings to better understand what works best for you.
I've seen beautiful renders that didn't follow any of these rules.