AI has made my work about 5-8x quicker, just because I'm able to have it cover a lot of the grunt work (update 42 if statements in 32 different files) that took time, but no particular skill.

I think the use cases where AI makes an economic improvement to the status quo for a business are rare, but they do exist, and they can be a significant improvement.

It's like the early days of the dotcom boom and bust - people thought the internet was good for every use case under the sun, including shipping people a single candy bar at a loss. After the dotcom bust, a lot of that went by the wayside, but there was a tremendous economic advantage to the businesses that were more useful when available on the internet.