I have never played any Sid Meier's games before for the exception of Civilizations. Yet, this game reminded me of Civ 4 so much. For the first 3 hours I have played the game non-stop. It was more like "Just one more mission and then I'm off". Well, that never happened.
The game is relatively easy to start, provided you do the training missions to understand what is going on. Quite a bit of reading to do to learn all the manoeuvres but its worth it. You are able to play the game at your own pace as it's turn based. But I would say that rushing you turn without thinking is not a good idea as sometimes it can result in a failed mission and a few captured pilots. There are two sides to play for: US and Japan. At the base your are able to hire new pilots and upgrade your planes. The pilots can learn new skills on level up. There are a lot of skills to choose from, so you must pick wisely. The planes can be custom painted which makes it so easy to recognize which pilot is flying it.
I really enjoyed the soundtrack in the game. As any Sid Meier's series that I have played the music doesn't get in the way of your experience, because it's quietly sitting there in a background and making your gameplay much better. The voice acting is simple, yet very nice. I actually laughed a bit at Japanese ascent, but I think it's good. The graphics look like Civ4, so it looks quite old. It doesn't really matter for the game of this size thought. I think it's suites the game just fine. Nothing really stands out, everything looks pretty good.
In the end I can say that this game must be in your library, no matter if your a plane fan or not. Its just a fun game to play. Although I would recommend buying it on a sale of some sort, as the re-playability is under the question.