Mixed
It has worked fairly well but it tends to introduce really subtle changes in behaviour (almost always negative) which are very difficult to identify
mirsadm on Hacker News
In the thread “AI Tribalism”, replying to this comment
Helped: Performed large refactors fairly well.
Got in the way: Introduced subtle negative behavior changes and caused fixing loops.
I've used Claude Code to do the same (large refactor). It has worked fairly well but it tends to introduce really subtle changes in behaviour (almost always negative) which are very difficult to identify. Even worse if you use it to fix those issues it can get stuck in a loop of constantly reintroducing issues which are slightly different leading to fixing things over and over again. …