OSSRH - I have not seen its UI

OSSRH is using Nexus, so it's the same UI as the one known from JBoss Nexus.

I'm using this for Debezium and a couple of side projects and have good experiences with it. Esp. publications to Central are very quicky (usually ~10 min), so for Debezium we've configured our release process to wait for the artifacts to be visible on Central before finishing. That way we know people can consume then from Central once our release has finished.