I haven't looked into it deeply, but I've seen people claiming to find it useful, which is one metric of success.

Agentic vibe coding maximalists essentially claim that code quality doesn't matter if you get the desired functionality out of it. Which is not that different from what a lot of "move fast and break things" startups also claim, about code that's written by humans under time, cost, and demand pressure. [Edit: and I've seen some very "sloppy and poorly implemented" code in those contexts, as well as outside software companies, in companies of all sizes. Not all code is artisanally handcrafted by connoisseurs such as us :]

I'm not planning to explore the bleeding edge of this at the moment, but I don't think it can be discounted entirely, and of course it's constantly improving.