I think this game is great. It is very entertaining and I play every day. All these comments and reviews saying you have to pay to go further into the game are completely false. This game don't cost a penny to play, you can unlock every GB and every part of the map with a little perseverance. I only see the ones with no patience having to spend real money on diamonds to speed the process of production. By paying a fee you ain't getting no extra than someone that hasn't paid a penny.