For a beta this book certainly offers more than what a finish books can offer. I was not expect much out of this beta, but I am glad to say I am proven wrong. This is a whole book. Though what really carries it is the fact that this beta is not afraid to show its teeth with the regimental rules. I spent a couple of hours just making up regiments for fun.
If you love the 40k setting, want a low level game, and don't want to use dated rules from other 40k rpg books then only war will work for you. Plus you can leave suggestions in the forums in the Fantasy Flight site that can help shape the game. What more can you want from a beta?