Thought it was great until I realized my progress hadn't saved. I'm not a marathon gamer and like to come back to games from time to time and pick up where I left off.
I've enjoyed this game immensely so far, but I hit a wall that frustrates me. It ties to what a lot of people are saying. For a current mission I have to fly to Cairo but my current plane can't fly from Casablanca or Nairobi thereto. I don't have any more certificates to buy a flight path I can take. So, I'm stuck in the game unless I pay real money. That's not why I play the games on Kong. Stopping our progress because of these kinds of details seems to be a common problem.