For one week, every pull request I opened got an AI reviewer alongside the humans. Here are the results, presented with the enthusiasm of a mostly fair performance review.
It caught two genuine bugs: an off-by-one in a pagination helper and an unhandled rejection that would only surface under a network timeout. Both were real, both were mine, and both were embarrassing in a productive way.
It also invented a library. Confidently. With a version number and an import statement that looked exactly right until I tried to install it.
Conclusion: excellent at pattern-level review, useless as an authority. Keep the humans, keep the reviewer, keep your scepticism.