Yes
It was very effective. Some of the features were somewhat complex, requiring two users with two browsers interacting in non-trivial ways
sickcodebruh on Hacker News
saved days of frustrating work
In the thread “Getting good results from Claude Code”
Helped: Small bounded tasks like writing Playwright tests with clear instructions.
Got in the way: Contributing meaningful features to a large web app due to veering off course.
… I had it write this process to a master task.md, then make more task markdown files for each feature to be tested. It was very effective. Some of the features were somewhat complex, requiring two users with two browsers interacting in non-trivial ways. Not 100% accurate and more complex features needed more contextual and code corrections, but overall it probably saved days of frustrating work.