I have read several reviews and seen some videos from the game.
To a certain extent I have to agree with Warren, at the same time I have to be fair with the authors of the game. The main point here is - it is commercial stuff. And from commercial stuff you can expect nothing else but being designed as commercial stuff. Therefore, there are things that are disturbing for hard core WWI fans, like the Dreideckers flying over Palestina.
As a hard core WWI fan, I have to say, this is not my cup of tea. Nevertheless, I have to say this game might fulfill expectations of common PC game lovers, as it looks "about right" from their point of view. Just the same as e. g. Flyboys (where all german figher pilots of course have to fly red triplanes and climbing parameters of the aircraft are comparable with jets...).
To put it in a nutshell - if you want to enjoy the real WWI atmosphere, Verdun, Rise of Flight or Wings over Flanders fields are a better choice for you. If you want to play a WWI game, give it a try.
Cheers
Ondra