Zelle works pretty good, the main problem is the security limits.
Let’s say you hire somebody to build a shed for $5,000.
You can’t just pay him $5,000. The first day maybe you can pay him $1,000, then the next day you can pay him another $1,500, then you’ve reached the 30-day maximum for a new contact so you have to wait till day 31 to pay him the other $2,500. After that if you want another shed you can pay the $5,000 instantly.