Zelle is ONLY for those you know. I'm still waiting for my P7M13 and the police laughed when they asked if they could trace it; even though my bank told me what bank it went to. By the time the police traced it, account had been closed, fake SSN and all (or I should say stolen SSN) from what I understood.Zelle is good, but like a wire transfer. There is no retrieving of funds once sent.
There is little chance you'll get your money back if somethings goes wrong with a Zelle transaction. I'll never use it again.