alex, I'm thinking about some possible answers to the question in the title to this thread:

"What good is transference?"

For me,

transference has been good because

--it has let me feel love/warmth/affection for and from someone, and I haven't felt that for a long time

--it is helping me to learn how to have a healthy/therapeutic relationship; for many years I have experienced only disfunctional ones

--it is helping me resolve needs from my past by letting me project them onto my T and work them out, such as fear of abandonment and fear of confrontation

--it has shown me I can care about someone, that I'm not emotionally dead

and there's probably more...