I have been to therapy at several different times in my life and generally found it to be helpful. I know it is the only reason I was finally able to see that my first husband was abusive and I needed to get out.
He never hit me, I would have been out the door then and there. However when one is constantly under attack verbally and is isolated from their friends and family your perspective becomes skewed and you have a hard time seeing clearly. My self esteem was battered to the point that I always felt I deserved the attacks.
Therapy is what finally got me out of the situation and helped me figure out who I was and what I wanted out of my next relationship.
Therapy also helped me during my parents separation and my breakup with my first love. The last sounds silly, but I was with him for 4 1/2 years. I thought we were going to get married and he left me for my brothers girlfriend.