Appears for $2.50 per user month, Oracle gives you verified security updates and access to a tool that you otherwise aren't allowed to use in production. As I mentioned on /r/java, this tool goes against their work lately putting their Oracle-only tools back in OpenJDK. Not that it's wrong, just annoying to see the continued commercialization of Java by Oracle while abandoning some non-commercial things (granted at the same time as "liberating" them).