I've built multiple new apps with it and manage two projects that I wrote. I barely write any code other than frontend, copy, etc.
One is a VSCode extension and has thousands of downloads across different flavors of the IDE -- won't plug it here to spare the downvotes ;)
Been a developer professionally for nearly 20 years. It is 100% replacing most of the things I used to code.
I spend most of my time while it's working testing what it's built to decide on what's next. I also spend way more time on DX of my own setup, improving orchestration, figuring out best practice guidance for the Agent(s), and building reusable tools for my Agents (MCP).