Anecdata, N=1; I recently used aider — a tool that gives LLMs access to specific files and git integration. The tools are great, but the LLMs are underwhelming, and I realized that — once in the flow — I am significantly faster at producing large, correct, and on-point pieces of code, whereas when I had to review LLM code, it was frustrating, it needed multiple attempts, and it frequently fell into loops.