The verdict
Tempo bridges visual UI design and React/TSX code output — for designers who want to build components without learning React, or React developers who want a visual builder for component scaffolding, that bridge is the value proposition. Storybook story generation is the under-discussed feature: it produces actual stories you can plug into an existing design system documentation site. The honest tradeoffs: it's UI-focused (not a full IDE replacement), the community is smaller than Cursor or Windsurf, and best ROI is component-level work rather than full apps. For design-led teams building component libraries, designers wanting to ship working React without engineering handoff, and Storybook-driven workflows, Tempo earns the slot. For full-app development, IDE-tier tools fit better. For pure UI generation from prompts (without the visual builder), v0 has a different shape that suits some users better.