[ThePadawan]

I've honestly made enough of a positive experience to recommend doing it.

Sometimes people just genuinely tell you things like "there wasn't enough detail about X on your CV, but we took a chance and called you anyway" - that tells me that I can improve my chances for a callback in the future by adding more detail (if I get that same feedback 2-3 times).

You're right though in that a looooooooot of hiring people also have no clue what they want to see.