After the 1st yr when the Stabilising work was done and I was ready to get into the unconscious stuff. 2x began. That was 13yrs ago. Still go 2xwkly now. In the beginning. It was beneficial because it caught me as I begun to fall between sessions. It helped with the internalisation, and the object relations.
Of course. It all depends on what one goes to therapy for, and what one wants or needs from it.