I'm very fan of the Kinky boost !
Cleans are pure magic tone, really.
After OD pedal, the Kinky booster, well, boosts the volume mainly. It tends to clean the tone up, which becomes more touch sensitive.
I tried it with my HX effects after the SD-9 simulation. It works great to remove fuzziness
I don't use it before the OD or distortion : In this case, it adds distortion.
Kinky boost may be used to accommodate different amps and give nice basic tone and touch.
If your amp is too bright, remove the bright option of the Kinky boost.
If the amp runs hot enough, no need of the boost option of the kinky boost.