Yes
it took me from less than zero to "hey, this is actually provably possible and we have a working PoC" in, like, fifteen minutes
mbrock on Hacker News
fifteen minutes
In the thread “Building more with GPT-5.1-Codex-Max”, replying to this comment
Helped: Asking to implement specific refactoring in existing repo.
Got in the way: Code quality was poor and required major revision.
… We continued to implement a few more refactorings. Eventually I realized the code we were churning out actually needs major revision and rewriting—but it took me from less than zero to "hey, this is actually provably possible and we have a working PoC" in, like, fifteen minutes. Which is pretty insanely valuable.