I did 70 days in a 56 day program. I really enjoyed it, especially the relief from the pressures of the world. The problem was I quickly learned to say what they wanted to hear, and conned my way through most of it. The result of that was that nothing changed so when it was time to leave I became frightened of going back out there. I magaed to convince them to let me stay another 14 days, then I had to leave.
I didnt follow any of their suggestions after leaving, especially the one about going to AA. I stayed sober and miserable for e few weeks, then it was back to the old game.
The moral of the story is that treatment wont do anything for you unless you participate fully and follow all directions including those for when you get out. Treatment gets you sober but will not keep you sober. All the best.