Are PON substrates cobsidered as good ?

I just discovered the various PON substrates from Lechuza, and I'm almost in love with those. They are a bit expensive..but just seem to be perfect tbh.

Used the Palm/Indoor one for my little Philodendron collection and the one for succulents for my Euphorbia and Cacti.

For the Pachypodiums and Euphorbia Leuconera, I mixed both.

I'm asking because, the sunstrates look great..but I just start to use PON (Permanent Ornamental Nutrition) substrates and would love some opinions.