I’ve taken one, and while I can say I don’t understand it all to well, I do understand a little bit of it, enough to get why I got the results I got. Typically for creating characters though, I’ll run them through a standard personality test and an enneagram, to get to know them a bit better, especially for my MC’s. I don’t really type my character until they’re all the way developed though, because I feel that if I try to type them to soon I’ll just end up writing them into the stereotypes for that type as to “stay within their personality”, if you know what I mean.
Oh, and I’m a 5w6, and slightly eccentric just as they say. 😉 As far as personality types go, I’m an INTJ all the way.
"A hard heart is no infallible protection against a soft head."