R:TW was one of my first real strategy games, and got me into grand strategy video games. A little sad because the PC mods helped make this game (Rome Total Realism added a LOT) but I will definitely get this. I've always wondered why the iPad didn't have more RTS/Strategy games, as they'd be ideal (except the twitchy multiplayer ones like Starcraft).
My one question is how well this will run on the original iPad Air, as that's the model I have. If it doesn't churn too badly during big battles, then this is a definite buy for me.