Vibes aren't everything, but in the absence of strong fundamentals, they at least give you the benefit of the doubt.

Strong fundamentals means that the thing is resonant and rigorous--the closer people look, the more convinced they become.

Superficially-messy-but-strong-fundamentals (beautiful mess) is better than shiny-but-poor-fundamentals (gilded turd), but when it's superficially-messy-and-weak-fundamentals it's the worst of both worlds.