To be fair, so far I have just read over the rules, and it will likely be along time before I am able to even give them a go. But I like what I've read. It's a pretty long book, so its a little daunting at a first glance, but the basics of the game are similar to others with interruptions/reactions. There is actually very little emphasis on weapons beyond the fact that you have your primary weapons (assault rifles, shoguns, pistols even) and support weapons (rocket launchers, machine guns or flamethrowers). Other than that the emphasis is placed on troop quality.
The rules repeatedly state that they are not written for a kill em all style of play, but rather scenarios. So you may have a scenario where superior quality troops are far outnumbered. The lesser quality troops will struggle to actually win the game by killing all the better troops, but instead, by preventing the superior troops from obtaining their goals (recon or item collection maybe), the lesser troops can win the scenario.
I hope to some day do a proper review, but I am far off from actually playing Tomorrow's War.