Quick take
Runway is useful for short AI video concepts, campaign visuals, motion tests, and creative exploration. It is not the tool to trust blindly for exact product demos or legally sensitive visuals. The best use is to create options, review every frame, then decide whether the idea deserves a real production pass.
Best fit
Use Runway for image-to-video tests, short social clips, campaign mood pieces, visual storyboards, and early creative direction. It works best when you already know the shot, subject, motion, duration, and review criteria.