Experience with the bew clarity tool in C1 V7

I'd like to know what the experiences are with new clarity in C1 V7? From particular interest is the punch mode?

I mostly apply it for landscapes. According to my experience it reacts very soon to strong for normal or high coloured images.
The image seems often to be "overcooked".
In cases of low coloured or monochrome images the punch mode there is little or no effect.

What kind of experiences did you get by applying the punch mode with the clarity tool?

Regards
Thomas