Only got this one after it's sequel (SWOTL), but played it for long hours in the summer of 94, and after.
Despite not having a long career mode (the game depicts the battle of britain, after all), the campaign mode was quite good for the time. As the other two games from the trio (Battle Hawks 1942, Their Finest Hour and Secret Weapons of the Luftwaffe), I would say the one of the short falls is the lack of aerial collisions.