Well, I got Gemini. I'm not a Gemini, astrologically. However, I have predominant Mercury throughout my natal chart: Virgo Rising, Virgo Moon and Mercury in 1st House, Gemini Mars and Jupiter in 10th House. I have done astrological charts a lot; a thing I did semi-professionally for four years. I'm very familiar with astrology, so I'd say this test detected what I already knew.
(A definite indication of what I say is true: this thread's title has a spelling error that annoys me, right now.)