Because Balsamiq looks unfinished by design, stakeholders focus on —the things that actually matter in the early stages.
Speed is the currency of Balsamiq. Because you aren't worrying about hex codes or drop shadows, you can pump out screens rapidly. A complex dashboard layout can be blocked out in under 15 minutes. This velocity is crucial during brainstorming sessions or "design sprints" where the goal is to generate a high volume of concepts. Balsamiq Mockups
The user base is surprisingly diverse.