What it does
Shows where the work came from. Not visits and clicks, but which marketing produced which job and what it cost to get it.
Why it is hard
Attribution is mostly guesswork sold as certainty. This one states what it knows, what it inferred, and what it cannot tell you. An owner can make a spending decision from it, which is the only test that matters.
For you
If you spend on advertising and cannot say which half works, this is the answer.