I got this game a few weeks back, and despite the low production values I've actually come to rather enjoy it, if for its simplicity rather than anything else. Simply put, it's actually pretty fun to play. The co-op mode actually is where it really shines. I'll write a review for the site soon when I have the chance and perhaps that can help those who aren't sure of this game.
In any case, I'm a big airplane buff (I should be, as airplanes is my job), and whenever a new plane game comes out I always like to find out what all you can fly in the game as sometimes it will determine if I get a game or not. I thought I'd post the list of the twelve planes you can fly in this one for anyone who's interested. Each of the three nations has four classes of airplanes: fighters, bombers, fighter-bombers, and special projects. Fighters are simply piston-engined fighters used during the war, bombers are piston-engined bombers during the war, and fighter-bombers are aircraft that were typically used as ground-attack planes during the war, but in the game they can also be effectively used as a fighter. The special projects class covers jet and rocket-propelled fighters that entered service or prototype form at the end of the war.
Fighter: Supermarine Spitfire
Bomber: Avro Lancaster
Fighter-Bomber: DeHavilland Mosquito
Special Projects: Gloster Meteor
Fighter: Messerschmitt Bf-109
Bomber: Heinkel He-111
Fighter-Bomber: Junkers Ju-87 (aka the Stuka)
Special Projects: Horten Ho.229 (aka the Ho.IX)
Fighter: Lavochkin La-5
Bomber: Ilyushin DB-3
Fighter-Bomber: Ilyushin IL-2 (aka the Shturmovik)
Special Projects: Bolkhovitinov BI-5
Of the three special projects planes, the Meteor actually did enter service at the end of the war, and was used fairly effectively against German V-1 "Buzz-Bombs" launched against England.
The Ho.229 and BI-5 both flew, but never got much past the prototype/testing stage.
The BI-5 was actually powered by a rocket engine, while both the Meteor and Ho.229 used turbojets.