Ask HN: Who’s Running OpenShift Cloud Platform 4.x?

My current employer is looking to upgrade to OCP 4 by the end of the year for our hybrid cluster. For those that have already jumped on the upgrade, what are your thoughts so far and are you utilizing the CoreOS platform? My team members who had the opportunity to attend Red Hat Summit 2019 are really excited about this upgrade (read: cluster migration) and how it can make our admin-ing lives significantly easier.