I don't know if it's just me, but I find that with a disciplined approach (or even an undisciplined one for some personal projects), LLM generated code is quite "maintainable" nowadays for the sorts of things that matter: adding new functionality, fixing the odd bug (usually a missed edge case, or behavior I didn't think-through well enough). They're also secure enough for me not to be overly concerned.

Granted, I stick to frontier models and avoid cheaper ones, but if it quacks like a duck...

If you're working on a CRUD/web app, absolutely. There's so much data for web apps out there that LLMs now produce better web app code than most of my coworkers from 2022 or so, since it follows consistent style rules. Web app code all looks the same, anyway.