Very good concept and the game is kind of fun, but the ads. I can understand running ads within the game, so it can stay free and the developers get something back from the hours invested into the game, but there is an unjustified amount of ads. There is one constantly at the bottom of the screen and every 30 second an unskipable ad pops up. It is just greedy in my opinion, I am sure the developers get enough money already. I would not reccomend until they rework the ads. I am very dissapointed.