I've been using it for a while to develop internal tools and I've been really impressed at how you can build complex applications with just pure HTML/CSS/JS
Previously I'd use React but now its not as clear to me the reason I would do that since either way I would just be developing through Claude.
It feels almost like the framework is just an implementation detail.
I find myself using a lot less libraries in general as well.
It kind of gives you a bit of NIH syndrome since the time cost is so low to roll your own sometimes.