Anecdotally I can say it's improved my productivity. Mainly because it's just a slightly better autocomplete than PHPStorm/Jetbrains IDE provides. Although they

Anecdotally I can say it's improved my productivity. Mainly because it's just a slightly better autocomplete than PHPStorm/Jetbrains IDE provides. Although they are now pushing their own AI tools for an extra fee pretty heavily but unlikely to pay for it given copilot pricing is pretty competitive. There are occasions where I'm just not in the mood to work something complex out so sticking a temporary comment in telling it what to do can sometimes yield a good enough result, all be it with some occasional minor tweaking. Where it's really shined is with repetitive tasks. It's nothing close to perfect but it's certainly a welcomed little helper even if it does get things wrong sometimes. In terms of the original question, I think its the cognative mental load thats being helped here more than anything, not having to waste brain power on the mundane bits is the big selling point for me.