When it comes to provisioning and patching, we use the satellite. It's acceptable when patching. I am satisfied with the provisioning and patching process as it's easy to manage. We don't use Insight, and I don't know about it. We don't use the Linux image builder or System Roles; we use our own Ansible Playbook to build a system.
We have all the automation set up for server provisioning and patching. We have the web console, but we don't really use its tools. We use our own Ansible Playbook, which allows us to manage and customize. We have many customizations. All the agents are installed for compliance, IP setup, file system creation - everything is automated.
When we create a VM, it only takes running the playbook and clicking a button. It takes about two minutes of work, and the automation handles the rest. In about two hours, the VM is up and running. If we use their tools, there are many limitations for customization, and we can only build an OS, but for the rest, we still have to run the automation. That's why we don't use those tools.
I would rate Red Hat Enterprise Linux a six out of ten.