I have been using Spacewalk for a while now and really like a lot of the built-in functionality. I have been using it to build out and manage a lot of my Red Hat, and CentOS installations.
The latest thing I have been using it for it to manage is my Hadoop cluster build out and configuration updates. I think that it helps to be able to control as much of it as possible from one management system. I know there are applications like Ambari out there, but to be honest who wants to add another tool if they don’t have to go to my site.
Here’s the link to my work blog about it.