Good points, especially about the lack of documentation. Regardless of the type of interface, people need references to go with them. Discoverability can mean

Good points, especially about the lack of documentation. Regardless of the type of interface, people need references to go with them. Discoverability can mean more than discovering features of the app too. To me, I think more about discovering information contained within it, seeing things I wouldn't have noticed in a command line experience. In a complex system like server automation, there's actually a lot of potential value in GUIs making it easier to see correlations between things or notice problems or discrepancies before they become bigger issues. I've been a command line-first user since the 90's, but I would hesitate to recommend this over other solutions specifically because of the lack of GUI.