<< worth the money ? >>
To the manufacturer, yes. For you, not likely.
FWIW, I have a septic system on a commercial property that has run perfectly
since 1974 based on the rule that anything going into the sytem (with a few
exceptions) has to pass through a human body first. Pump outs have been minimal
over the years. Home septics probably need more service than mine, so treat it
with respect and you won't have any calamities. HTH