It's fun until you realize it takes 5 clicks to get past the challenges (everytime you open the app), and ads every other level, and then you reach a seemingly impossible level that tempts you to pay to get more lives. You ultimately end up spending more time on the extra BS than you do actually playing the game. It takes forever to earn enough gold to buy boosters to get past the difficult levels and after awhile even the transition from level to level is so slow it's excruciating.