I'm a not-that-experienced knitter... never done cables before...
And I'm most of the way through my Rogue (body and hood are done - now onto the sleeves).
There is a legend (with instructions) for the charts and everything is very clearly written/explained.
When in doubt, thre is also a yahoo-group devoted to Rogue:
Most questions are already answered there (searchable archive), or you can ask the group.
Also, the author of the pattern can be emailed with questions. She has responded to all of mine in less than 24 hours.
If you get stuck, you can send me a message through here and I'll do my best to help. Or start a knit-along topic.
All in all, the pattern is definately worth the $6.
PS: Here's some photos of my Rogue-in-progress