Why 5 stars?
Well first off, this is free. Free. For free one might expect a cheap PDF with no art or background. This has both.
Also, the players guide does not give any of the story away, at all. Everything is left up to the GM and players to discover and hash out.
I thought it also gives detailed informative tips about developing each race and class so that they could be more successful.
Did I say it was free? This is one of those things that you can use if you want, or if you don't think it gives enough detail, as a GM, add more information
