We attended the Oakland chapter, because the timing worked better for us at the time. The one in SF would have been more convenient, because we live on the Peninsula and that one takes place in Millbrae.
Anyhow, they are all designed to use the same dialogue technique. It consist of a weekend, followed with 6-8 post sessions. It's been awhile, so I don't exactly remember the number of post sessions. The post sessions are essentially a dedicated day to continue what was started over the weekend. Ours were every other Saturday.
My description is rather vague, but it was beyond worthwhile.
Me:45 ExW:48 M:04/97 3 Bombs & 2 ReCons 1st BD 11/10 D Finalized 4/20 D-16 S-14 Going in one more round when you don't think you can. That's what makes all the difference in life.~Rocky Balboa