The game is simple to learn, easily meshed into epic and 40k, and is a huge amount of fun. Now that I am done with collecting BFG, aeronatucia is my next obsession, and i desire to geek about it!
The rulebook is pricey, but is slowly coming down, and EVERY craft has a model for it, aside from a variant of the phoenix.
The game is low-cost (especially for forgeworld) and the missions are exciting and fun.
Whats better is the game has self-limiting rules that prevent 6 hour games. Ammunition and fuel restrictions add a sense of urgency to the game.