Maltego earns its place when an investigation already has several entities in motion: domains, people, companies, emails, documents, infrastructure, or social accounts that need to be organized into a relationship map.
The graph view is useful because it forces the analyst to separate leads, source-backed links, and weak assumptions instead of keeping everything in browser tabs. In testing, the strongest value came from building a defensible mid-case map, not from expecting transforms to discover the whole story automatically.
Where it works best
Use Maltego when you need to explain how pieces connect, test competing hypotheses, or hand a structured map to another analyst or editor.
Where it slows down
Setup, licensing, and transform quality matter. A dense graph can look persuasive even when the underlying edges are weak, so important links still need source-level review.