I think it is / has been helpful for me. I had a very unstable childhood with a lot of unhealthy messages about the safety of relationships, attachment, boundaries, etc. leading to a raging fear of abandonment. That fear has led me to a lot of unhealthy coping mechanisms and never allowing myself to be involved in meaningful relationships with anyone. Learning to trust and develop a healthy attachment and stable relationship with my T has helped so much to lessen my fears and challenge my beliefs about being in authentic and intimate relationships with others.