It may be that I am used to the GParted UI, but I do think its visual representation lends itself to discovery, especially for newbies. Judging from the screenshots on this article, I really don't like the presentation:
1. The default setting is to format the entire disk (which you almost *never* want!)
2. The "Show Partitions" tickbox is irksome (why is it off by default? why is it even an option?)
3. The same goes for the "Partition x on [disk name] is currently mounted on/as '(null)'" message. Mounted on null is nonsenical: is it mounted or not? The 'stop' sign indicates an error condition, but offers no way to resolve it and does not disable the 'Format' button. Dangerous.
I keep searching for a meaningful use case, but the only I can think of is formatting flash disks (where you probably want a single partition, encryption and a volume name.) Everything else, e.g. partitioning for system installation, preparation of new disks, seems to be handled better by the GParted UI.
Anyone care to explain what problem this program solves?