I will 100% try this within the next weeks. I am ddg-ing every possible variation of "ethical adsense alternative" without any useful leads for months now.
I haven't had an experience. That's the point. Most of my projects remain unmonetized for ethical reasons. The only thing I could find until now was tize[0], which is a completely different approach to advertising that didn't strike me as particularly circumspect.
At least judging from their page where all they claim is ethically correct, not effectiveness.