Tiffen soft contrast filters are nothing new, but there seems to be nothing about them written from dependable sources... Weird. These filters promise to "darken highlights and to lighten shadows, without need for exposure compensation" - in theory, for example, you could manage to catch a high contrast scene like patches of sun on a forest ground and neither the shadows would be blocked, or the highlight would be burned.

I know that this would normally be used more in miniature format than in LF, but as I can't find info anywhere, I'll take the chance to ask here. Do these filters really work? What are their limits? Any drawbacks? Do some people actually use them on a regular basis to solve excessive contrast issues? Or should I rather work on my stand development skills?

Sounds too good to be true!