My small group is going through the DVD & study guide. The study guide has a lot of detail and a lot of questions. This is okay for individual study. For a group study, it would require at least two weeks to go through each session unless you skip through parts of each session. I'd recommend that some of the questions be condensed. The content overall is good.
Remembering the Forgotten God is a wonderful study to do in the context of a small group. I would highly recommend having all small group members read the book, Forgotten God, that this study is based upon. The book goes into greater depth and offers more scripture.