The ease of use in creating bare metal instances with different configurations using Ansible playbooks is one thing I like most about this product from Redhat! You can't go wrong if you are looking to do cloud computing or build containers etc., there's no better option out here when it comes down building containerized applications especially at low cost end where your requirement may not be too sophisticated but still need some kind performance boost over traditional VMs that have been around since forever! Nothing much so far :). It took me sometime getting used into all these features available under ansiplaybook configuration management tool though its very easy once u get familiarised well enough!! If want something simple which gives good bangs per buck then definitely try them before going ahead else stick w/o paying anything extra just because they don;t support any other OS than RHEL!! We were solving our problems related server provisioning by doing heavy duty load testing across multiple virtual machines running various linux dist.