Unlike the OP it's at the hirer's discretion how much weight they put in the score and it's made clear to us there's a definite pattern that more nervous candidates & those without English as a natural language score less well. We ask them to come into the office, only in rare occasions does someone do it remotely.
Most of my candidates in software positions score 40-70% and have done well in the company, I've had a number in the 0-20% bracket of whom I took 1 based on his good performance in other aspects of the interview - he's not turned out to be a great hire relative to the others. A handful in the company get the 95%+ scores and they've all done well - I think many are among the best performers in our department suggesting some kind of particular capability.
The output of the test is a % score with breakdown in a few catagories plus a 2-3 page personality profile. I showed mine to a few ex colleagues, it said probably 8 things like "will have days where he's uncommunicative or seems unfriendly and days he's warmer" which everyone pointed out as eerily true about me (and the negative aspects I can therefore work on!) but it read a little like a horoscope in that you can probably find truth in it and it's up to you to what extent you forgive the paragraphs that are very untrue, although presented in a scientific way.
Honestly, I think it's pretty helpful as accompanying information and would use it again at another job
