Google Stitch 2.0: Senior-Level UI in Seconds, But Editing Still Breaks

Google Stitch 2.0 can generate production-quality UI in seconds. But the moment you try to refine a single component, the system starts to break. This post is a hands-on evaluation of Stitch while building a real product flow, focusing on where it excels and where it fails under practical usage. TL;DR UI generation quality is exceptionally high (near senior-level output) Iteration speed with Gemini 3 Flash is extremely fast DESIGN.md improves consistency across outputs Component-level editing is