Remember those Lost Worlds books? The ones where you and another player picked moves and then looked up the results (with illustration?). Ace of Aces is similar, but in this case it goes to "Eleven".
These aren't small booklets with a few dozen pages and some hand drawn illustrations. These feel like they are numberless (they aren't, but they feel that huge) pages of illustrations and photos showing your latest maneuver. This isn't swords and axes, but a pair of World War 1 fighter planes going head to head in a duel to the death.
If you enjoyed the Lost Worlds books, you may enjoy Ace of Aces. I say may, because A) it isn'tfantasy, obviously and B) it is much more complex, which kinda turned my group off to it.
It also suffered from the same problem the Lost Worlds series of books suffered from - it's a two player game, no more, no less. Gaming groups are built around 3 to 6 (or more) players, so this type of game already has a limited audience to aim for.
I believe we gave it a shot or two. I don't think we ever played a session to completion. Still, the box art is awesome if you ask me :)