I did not yet invest my time to look into Zeus or cashu. Would you recommend one over the other? And why would you prefer one over the other?
I know with WoS I choose to use a centralized service. The cool thing is that one does not to directly give WoS any personal data points. And I keep just a minimal amount of funds there to zap some notes I like.
But it would be no ground breaking thing, when I would loose access to these funds.