I wanted to use them, but they'd only accept payment via Plaid, that ridiculous service where I have to hand my banking password to a third party -- you know, the exact thing that we all know to never ever do. That's a nope for me, sadly.
Are you sure? My USD Wise "account" has no sort code nor account number (unlike other currency accounts I hold), so nobody can initiate an ACH transfer into it. There is a button to initiate an ACH transfer "in" but it has to come from my linked bank account. Linked with the aforementioned Plaid.