v0 generates beautiful ui fast. the generated code is next.js + tailwind + shadcn, which means it looks great in the preview. what it doesn't mean is that the backend wiring, auth, and data handling work the way you think they do.
common v0 issues we rescue: server actions that silently swallow errors, API routes that don't handle edge cases, auth flows scaffolded with next-auth that work in dev but break in prod, supabase or other DB integrations that v0 stubbed in but didn't finish. the ui is usually fine — it's the layer underneath that needs a senior engineer.
audit your v0 app before you launch, fix what's broken after, or get monthly maintenance — it's all handled by senior engineers using AI tools and human judgment, not scans alone.