@glyph (a software architect with 30 years in the industry here) I have also made a few prototypes that would take me forever to code by hand. Claude just made them in a few hours. Honestly, I wouldn't even have started most of them.
My outcome is different from what Elissa says. It's been fun at first, as I didn't use LLM before, and it's still fun now, as one of the projects is production ready, and I'm actually using it. The others aren't ready, but only because the engineering task is difficult and I haven't figured out the solution yet. But it's still fun. Of course there are boring parts, like telling the clanker that it forgot to update the documentation, or other things, and please update your bloody agents.md so that you remember next time.
So, overall, it's been a useful tool for me and it saved me tons of time. Awesome result for side projects that will never be commercialized.