Very much sky. I went to three of four peer-to-peer support groups before finding one that I liked. There is the "official policy" of the group (i.e. what people are allowed to talk about, general guidelines, etc.) the personality of the facilitator (the group I like rotates facilators each week... the facilitators are group members who have volunteered and taken some special training in order to lead the group) and then of course the personality and "dynamic" of the group itself.

Also the size of the group. One that I went to was just too small... only 3 or 4 or 5 regular people, not enough variety of discussion from week to week. For someone else though, such a small group might be just the right thing...