I got this because it looked fun. I was interested to see what a series of Bible studies on 2 Sam 23:8-39 would look like. It's surprisingly good - I'd say it's pretty much ideal for a group of young Christian men / teenage lads wanting to think through how living as Christians doesn't mean being less masculine. Of course, it sometimes ends up heading towards the allegorical - "Shammah drew a line and said that God's enemies could come this far but no further. How do we need to do that in our battle against sin?", but that isn't necessarily invalid, and the examples he uses are helpful ones.