The gameplay is good,there are no ads only if you want to get free coins.But I will give this game a 2 star review because I had almost 1 billion coins and I have been playing for a long time and suddenly when I logged in my account I lost all of my coins for no reason. This made me very sad to see all my years worth of coins go away in a sudden. I wish that the issue could go away but other than that the game is good.