That some people would ascribe so much value to this incredibly pseudo-scientific model is concerning. It is just one more system attempting to classify humans into overly simplistic categories of Horoscopic descriptions - incredibly generalised, enough to "fit" anyone, with just enough detail to seem like they could be legitimately truthful and helpful to you as an individual person.
The Myers-Briggs personality test is flawed enough, but it has *just* enough scientific grounding to be somewhat valid. This, though? This is about as constructively useful as blowing smoke up your arse - a fun experiment, if taken the right way, but more likely than not a colossal waste of time with potentially negative side effects.
I've noticed that when we attempt to define ourselves with limiting labels, no matter the kind, we tend to limit subconsciously ourselves psychologically, rather than attempt to grow beyond those labels.