I have the other SW "Companion" books, so I knew that this one would likely be as good. Supplements can be so much fluff, particularly in a system like SW, where sandbox style is so encouraged. Who needs it, right? I can make up my own stuff without it! What I've found with these Companion books though, is that there is so much juicy inspiration for both player and GM, that they're worth having.
As has been stated in other reviews, I really dont so much need the GM tips section, but the spells, magic items and critters sections are worth the price of admission. I'm running Deadlands, but this stuff is usable in horror western, modern, or sci-fi horror settings perfectly well.