Currently when you use ecash amounts spent are visible to a third party (the mint) so is open to amount analysis. You have to trust that the mint isn't malicious or being forced to collect that data. It's only who signed the transaction that is blinded.

With Monero transaction amounts aren't visible to any third party even if you are using someone elses node.

What I like about ecash is that there is no public blockchain, but what is not so great is that it isn't truly p2p (you're passing around IOUs, not the actual coin), doesn't have permissionless exit, and is custodial.

It also has a major catch-22 due to the above issues. I'm not sure yet how it would be resolved.

Anonymous mints are more difficult to take down, but no recourse if they rug users.

Public mints are easier to co-opt, takedown, or coerce by the state, but face more consequences if they rug their users.

I'm sure it's a matter of time before public mints start to become regulated. They're just under the radar at the moment.