I enjoy the repetitiveness of the game and find it both challenging and relaxing. However, this game has so many ads that it is nearly impossible to actually sit and play it. Not only are the optional ads to watch for unlocking things throughout the game (which is fine and understandable), but ads also play almost constantly during game play, at least one every minute or two. I would rate the game itself at least a 4 if not for the absurd quantity of ads.