Yeah, I do find these fairly accurate. When these tests are made with care and genuine insight they usually do point at some truth.
The only issues I have with this test are the extroversion and empathy scales. The empathy questions seem to suggest empathy is being greatly influenced by the feelings of others rather than being aware and sympathetic of those feelings; I’m not drawn into sadness by the sadness of others, but I am aware of it and sympathetic to their plight.