I thought WAR! was a good book. I see absolutely no problem recommending it, as it has far more than just repeated material from SOTA 2063 in addition to some of that.
Sure, it also adds
- Killing Holocaust victims once over to steal their necromantic treasures (worth 1500 ¥ or something and violating every rules on magic items)
- Typography running berserk
- Information on street festivals alternating with sections claiming the city looks like a second Stalingrad
-- And again alternating with blurps on jungle warfare, because on of the few constants in the book is the authors' assumption that Bogota lies in the rainfores
- Aircraft carriers turned into submarines because the authors didn't know what "Ballast Tanks" do in SR
- Explosive rules which turn a bag of hand grenades into a mini nuke
- MRSI for arrows which simply doubles their damage
- The comically overpowered Slow spell
What it doesn't have: Any information on the actual war. No front lines, battles, geographic references, not even a single map in the whole book. This "product" is so exceptionally comically bad and devoid of any saving graces that it can't even work as a cautionary tale.