Most people who comment positively on AI are either shills or people working in the AI industry (gotta keep the bubble expanding). The OP experience matches mine with most models for any kind of serious work. In fact, it was the reason why Claude was previously successful because it was the most railed model.

I've tried the latest models across OpenAI, Claude, Chinese, etc. They just do stuff. That's not how work is though. You want them to do specific work, at which point it's a real hassle to follow up on all the garbage they have been outputting.

/long rant