I've done IOP twice. The first time I was in high school and it was an all day program. It helped me tremendously. The second time was just last year and I found it incredibly redundant, each day listening and talking about the same things with VERY little time for feedback. It was not at all helpful for me. I did get better but I am pretty sure it is only because in the three weeks I was there I switched from depressed to hypomanic.