While that test was vs mud from the delta, it is still much better than some other sediments and is what I'd recommend.
It's much better than plain sand or flourite for example.
It also provides a good back up for water column dosing, folks sometimes forget to do dosing.
Some plants seem to do much better with it vs other inert sediments.
But if you move plants around a lot, have very high density of fish, it might not be ideal.
Still, I'd suggest ADA AS any day.
If your filter is well prepped then you can add ADA AS to an existing fish set up, you can also do large 2-3x a week water changes with Zeolite additions to the filter.
As long as there's enough export/chemical binding and bacteria, there's no issue.
I really do not think you can over do water changes also.
Then it's a nice one type of sediment and it's not too messy vs mud and soils.
And for the $, it's a good deal overall too.
Regards,
Tom Barr