Even with the latest SOTA models - I still consistently find issues. Performance, security, memory leaks, bad assumptions/instruction following, and even levels of laziness/gaslighting/dishonesty. I spend less time authoring changes but a lot more time reviewing and validating changes. And that is using the best models (Opus 4.6/Codex 5.3), the OSS/flash models are still quite unreliable at solving problems.

Token costs are also non-trivial. Claude can exhaust a $20/month session limit with one difficult problem (didn't even write code, just planned). Each engineer needs at least the $200/mo plan - I have multiple plans from multiple providers.