Like any tool, you need to know how to use it.

For my uses, my rule is "long to research, but easy to verify". I only ask for things I can quickly determine if they're right or not, I just don't want to spend half an hour googling and sorting though the data.

For most of my queries there's an acceptable margin of error, which is generally unavoidable AI or not. Google isn't guaranteed to return everything you might want either.