Psychoanalytic ideas such as transference and the dynamic unconscious are helpfully applied in psychotherapy every day. Of course, not all methods of psychotherapy use them, and reasonable people disagree about the relative value of different psychotherapeutic approaches. A review of empirical support for the psychodynamic approach can be found in Shedler J, "The Efficacy of Psychodynamic Psychotherapy," American Psychologist 65:2, 98-109 (Feb-Mar 2010).

I'm not even a psychoanalyst, much less a zealot.