It's got so much potential, but the lag & bugginess is too much to avoid. I use a stylus to play so my taps are as precise as I can, and even when I'm as careful as possible to press a button, it seems to register to the resource or building sitting BEHIND what I'm clicking. Every single time I go to upgrade a building or check what's left, it freezes for a solid 15 seconds. Cute story & characters, horrible interface.