My productivity boost is much more modest than 30% to be sure, but I'm less tired at the end of the day. The productivity boost for non-seasoned devs, or devs

My productivity boost is much more modest than 30% to be sure, but I'm less tired at the end of the day. The productivity boost for non-seasoned devs, or devs of average skill level or above doing relatively routine but needed work? For a large chunk of the nearly-invisible-to-silicon-valley workforce doing those tasks, I would be surprised if it wasn't more than 30%.