APS is more like perlite texture than soil. Looks very similar.
I actually use coco for everything. I don't know what I would do with out it. I use it in my laying bins, incubation for chameleons and geckos, plants, cage substrates for chameleons and geckos. So its just what I use for everything.
Reason Id like to switch over for incubating possibly is Id like to maybe see the eggs incubating instead of burying them and I didn't really want to use perlite or vermiculite either.