When I was a "new" manager at my current employer making my first hire, I was encouraged to use it.

It certainly was not a pass/fail type of test. It was supposed to give you insight into the personality of the person taking the test. And it wasn't supposed to replace a good guided interview process. We used behavioural interviewing techniques with scripts provided by company, but tailored for the interview by the hiring manager.

When I used the personality test, I actually had one of the most difficult hires I've done. Two very good candidates, both easily capable of doing the job. So I did as HR asked, and I had them do the test. What a waste of time. It really didn't help at all. The results were like a horoscope, entirely up to the readers interpretation, very subjective. To break the tie, I worked with someone to come up with a simple 15 minute test, related to skills they would have to use day in and day out on the job. That test helped define the winner.

I never used the personality test again, and not long after the company as a whole stopped using them.