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...