Way back when I played SF too. I remember the modules as being some of the most fun I'd had gaming. It had pretty much everything - intrigue, combat, and football. What more could you ask for?
About the only problem I really had is the same problem I have with all sf games - they become dated really quickly and, at least back then, tend to be written by people who have never picked up a rifle and shot it.
Thinking about it now though, I think I might have to go back and check things out again. Like was mentioned, it was like Basic and Expert DnD, a blast with a really short learning curve.