darktable is valuable because photo editing is often not just about one image at a time. When you work with shoots, sessions, or large folders of RAW files, you need a workflow that can support both image organization and detailed development. darktable lives in that space by combining catalog-style management with serious image processing tools.
It is most suitable for photographers and advanced hobbyists who want to sort, review, and develop RAW files on Windows in a more deliberate way. If your workflow includes many photos from one session and you want consistency across edits rather than isolated adjustments on single files, darktable becomes much more appealing.
What makes it worth keeping is the balance between photo workflow and editing depth. It supports stronger image control than a casual editor while still giving users a structure for working across multiple images. That can make it a better fit than simpler viewers when photography becomes a regular discipline instead of an occasional task.
The tradeoff is complexity. darktable is not built around instant results for casual snapshots, and the interface can feel dense if you only want quick edits. The better expectation is a more methodical tool for people who are willing to learn a serious photo workflow in exchange for stronger control and repeatability.