I've been working on a character sheet application for a while, and decided to vibe-code it with Spec-kit to help me write up a specification, and for things I know it's been great. I tried using Claude to make it into a PWA (something I don't know very well) as an experiment, and I've found the nanosecond the model strays out of my experience and knowledge everything goes straight to Hell. It wraps my codebase around a tree as if I'm not paying attention while driving.
It's a tool you'll have to learn to use, but I can say with absolute confidence it's no replacement for actual skills, if anything it highlights the gulf between people who know what they're doing and people who don't, for better and worse. It sacrifices some of the 'code under your fingers' feeling for management tasks, which I personally really like, as I've always wanted to document/test/code review/spec things out better, and I now understand the pain of people who'd rather not do that sort of thing.