I love how easy it was to set up, install, configure, manage and monitor this cluster using open source tools like MariaDB-Galera Control Center (MCC). The fact that you can have multiple nodes in your system without having any downtime or service disruption makes me really happy! It's not perfect yet but we are working hard at making sure everything works as expected when running with more than one node. We use Mysql 5+ version so there might be some features missing from newer versions of mysql which would make things easier if they were available. If anyone has experience setting up similar systems please share what worked well/what could've been better. Monitoring our database performance uptime across all servers. Being able to rollback changes made by users very quickly since no data loss occurs during such events.